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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1920453.pdf | 2.11 MB | Shaun Ewing | Aug 01, 1933 00:00 |
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US-1920453-A // Telegraphic intercommunicating system // Watson Edward F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.11 MB | Shaun Ewing | Aug 01, 1933 00:00 | US-1920453-A // Telegraphic intercommunicating system // Watson Edward F. // American Telephone & Telegraph | ||||
| PDF File 2139799.pdf | 2.08 MB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2139799-A // Telegraph switchboard switching system // Bonorden Allen Rudolf // American Telephone & Telegraph | |||
| Version 1 (current) | 2.08 MB | Shaun Ewing | Dec 13, 1938 00:00 | US-2139799-A // Telegraph switchboard switching system // Bonorden Allen Rudolf // American Telephone & Telegraph | ||||
| PDF File 2190540.pdf | 1.99 MB | Shaun Ewing | Feb 13, 1940 00:00 |
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US-2190540-A // Printing telegraph system // Desmond James Michael // American Telephone & Telegraph | |||
| Version 1 (current) | 1.99 MB | Shaun Ewing | Feb 13, 1940 00:00 | US-2190540-A // Printing telegraph system // Desmond James Michael // American Telephone & Telegraph | ||||
| PDF File 1793582.pdf | 1.97 MB | Shaun Ewing | Feb 24, 1931 00:00 |
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US-1793582-A // Telephone system // Bailey Rand S. ; Nelson Stanley F. ; Shipley Frank F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.97 MB | Shaun Ewing | Feb 24, 1931 00:00 | US-1793582-A // Telephone system // Bailey Rand S. ; Nelson Stanley F. ; Shipley Frank F. // American Telephone & Telegraph | ||||
| PDF File 1791587.pdf | 1.94 MB | Shaun Ewing | Feb 10, 1931 00:00 |
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US-1791587-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.94 MB | Shaun Ewing | Feb 10, 1931 00:00 | US-1791587-A // Printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 2060843.pdf | 1.93 MB | Shaun Ewing | Nov 17, 1936 00:00 |
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US-2060843-A // Transmission system // Abraham Leonard G. ; Grenell Arthur F. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.93 MB | Shaun Ewing | Nov 17, 1936 00:00 | US-2060843-A // Transmission system // Abraham Leonard G. ; Grenell Arthur F. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 2034791.pdf | 1.91 MB | Shaun Ewing | Mar 24, 1936 00:00 |
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US-2034791-A // Statistical tabulating and printing telegraph system // Bailey Austin ; Thomson Howard Mearns // American Telephone & Telegraph | |||
| Version 1 (current) | 1.91 MB | Shaun Ewing | Mar 24, 1936 00:00 | US-2034791-A // Statistical tabulating and printing telegraph system // Bailey Austin ; Thomson Howard Mearns // American Telephone & Telegraph | ||||
| PDF File 2095360.pdf | 1.89 MB | Shaun Ewing | Oct 12, 1937 00:00 |
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US-2095360-A // Television system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.89 MB | Shaun Ewing | Oct 12, 1937 00:00 | US-2095360-A // Television system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 2139800.pdf | 1.84 MB | Shaun Ewing | Dec 13, 1938 00:00 |
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US-2139800-A // Telephone switchboard switching system // Bonorden Allen Rudolf // American Telephone & Telegraph | |||
| Version 1 (current) | 1.84 MB | Shaun Ewing | Dec 13, 1938 00:00 | US-2139800-A // Telephone switchboard switching system // Bonorden Allen Rudolf // American Telephone & Telegraph | ||||
| PDF File 2064894.pdf | 1.80 MB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064894-A // Common medium multichannel exchange system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1.80 MB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064894-A // Common medium multichannel exchange system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1909433.pdf | 1.79 MB | Shaun Ewing | May 16, 1933 00:00 |
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US-1909433-A // Voice operated control arrangement for radio telephone systems // Taylor Edmund R. ; Wright Sumner B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.79 MB | Shaun Ewing | May 16, 1933 00:00 | US-1909433-A // Voice operated control arrangement for radio telephone systems // Taylor Edmund R. ; Wright Sumner B. // American Telephone & Telegraph | ||||
| PDF File 2056346.pdf | 1.74 MB | Shaun Ewing | Oct 06, 1936 00:00 |
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US-2056346-A // Signaling system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.74 MB | Shaun Ewing | Oct 06, 1936 00:00 | US-2056346-A // Signaling system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1926169.pdf | 1.64 MB | Shaun Ewing | Sept 12, 1933 00:00 |
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US-1926169-A // Phase and frequency control // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.64 MB | Shaun Ewing | Sept 12, 1933 00:00 | US-1926169-A // Phase and frequency control // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1927133.pdf | 1.61 MB | Shaun Ewing | Sept 19, 1933 00:00 |
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US-1927133-A // Transmission control in signaling systems // Newby Neal D. ; Moody Dwight L. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.61 MB | Shaun Ewing | Sept 19, 1933 00:00 | US-1927133-A // Transmission control in signaling systems // Newby Neal D. ; Moody Dwight L. // American Telephone & Telegraph | ||||
| PDF File 2064907.pdf | 1.59 MB | Shaun Ewing | Dec 22, 1936 00:00 |
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US-2064907-A // Common medium multichannel exchange system // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.59 MB | Shaun Ewing | Dec 22, 1936 00:00 | US-2064907-A // Common medium multichannel exchange system // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 2221129.pdf | 1.57 MB | Shaun Ewing | Nov 12, 1940 00:00 |
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US-2221129-A // Telegraph distortion measuring system // Cowan Frank Augustus ; Rhodes Harold Anson // American Telephone & Telegraph | |||
| Version 1 (current) | 1.57 MB | Shaun Ewing | Nov 12, 1940 00:00 | US-2221129-A // Telegraph distortion measuring system // Cowan Frank Augustus ; Rhodes Harold Anson // American Telephone & Telegraph | ||||
| PDF File 2037106.pdf | 1.57 MB | Shaun Ewing | Apr 14, 1936 00:00 |
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US-2037106-A // Telephone system // Abbott Henry Herrick ; Newby Neal Dow // American Telephone & Telegraph | |||
| Version 1 (current) | 1.57 MB | Shaun Ewing | Apr 14, 1936 00:00 | US-2037106-A // Telephone system // Abbott Henry Herrick ; Newby Neal Dow // American Telephone & Telegraph | ||||
| PDF File 2054910.pdf | 1.56 MB | Shaun Ewing | Sept 22, 1936 00:00 |
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US-2054910-A // Telephone system // Nelson Stanley Foushee ; Shipley Frank Foster // American Telephone & Telegraph | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Sept 22, 1936 00:00 | US-2054910-A // Telephone system // Nelson Stanley Foushee ; Shipley Frank Foster // American Telephone & Telegraph | ||||
| PDF File 2034034.pdf | 1.56 MB | Shaun Ewing | Mar 17, 1936 00:00 |
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US-2034034-A // Circuits with noncircular shields // Green Estill I. ; Leibe Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Mar 17, 1936 00:00 | US-2034034-A // Circuits with noncircular shields // Green Estill I. ; Leibe Frank A. // American Telephone & Telegraph | ||||
| PDF File 2171542.pdf | 1.56 MB | Shaun Ewing | Sept 05, 1939 00:00 |
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US-2171542-A // Telegraph system // Cunningham Harold Jerome ; Douglass Lloyd Richmond ; Duncan James Archibald ; Walker Charles Robert // American Telephone & Telegraph | |||
| Version 1 (current) | 1.56 MB | Shaun Ewing | Sept 05, 1939 00:00 | US-2171542-A // Telegraph system // Cunningham Harold Jerome ; Douglass Lloyd Richmond ; Duncan James Archibald ; Walker Charles Robert // American Telephone & Telegraph |
