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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1795924.pdf | 679 kB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795924-A // Relay circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 679 kB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795924-A // Relay circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 2014222.pdf | 679 kB | Shaun Ewing | Sept 10, 1935 00:00 |
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US-2014222-A // Cutting tool // Bieling Carl A. ; Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 679 kB | Shaun Ewing | Sept 10, 1935 00:00 | US-2014222-A // Cutting tool // Bieling Carl A. ; Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 1936187.pdf | 679 kB | Shaun Ewing | Nov 21, 1933 00:00 |
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US-1936187-A // Electron discharge device // Denzler Arthur H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 679 kB | Shaun Ewing | Nov 21, 1933 00:00 | US-1936187-A // Electron discharge device // Denzler Arthur H. // Bell Telephone Labor Inc | ||||
| PDF File 1942501.pdf | 678 kB | Shaun Ewing | Jan 09, 1934 00:00 |
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US-1942501-A // Light-sensitive tube // Stilwell George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Jan 09, 1934 00:00 | US-1942501-A // Light-sensitive tube // Stilwell George R. // Bell Telephone Labor Inc | ||||
| PDF File 2076229.pdf | 678 kB | Shaun Ewing | Apr 06, 1937 00:00 |
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US-2076229-A // Wave shaping system // Dunn Hugh K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Apr 06, 1937 00:00 | US-2076229-A // Wave shaping system // Dunn Hugh K. // Bell Telephone Labor Inc | ||||
| PDF File 1852647.pdf | 678 kB | Shaun Ewing | Apr 05, 1932 00:00 |
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US-1852647-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Apr 05, 1932 00:00 | US-1852647-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 1871358.pdf | 678 kB | Shaun Ewing | Aug 09, 1932 00:00 |
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US-1871358-A // Electrical contact // Butterfield Joseph T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Aug 09, 1932 00:00 | US-1871358-A // Electrical contact // Butterfield Joseph T. // Bell Telephone Labor Inc | ||||
| PDF File 1901958.pdf | 678 kB | Shaun Ewing | Mar 21, 1933 00:00 |
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US-1901958-A // Substation circuit // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Mar 21, 1933 00:00 | US-1901958-A // Substation circuit // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 2141388.pdf | 678 kB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141388-A // Facsimile telegraph system // Harrison Henry C. ; Pope Thomas J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141388-A // Facsimile telegraph system // Harrison Henry C. ; Pope Thomas J. // Bell Telephone Labor Inc | ||||
| PDF File 1956709.pdf | 678 kB | Shaun Ewing | May 01, 1934 00:00 |
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US-1956709-A // Calling circuit // Cooke Leighton B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | May 01, 1934 00:00 | US-1956709-A // Calling circuit // Cooke Leighton B. // Bell Telephone Labor Inc | ||||
| PDF File 1981793.pdf | 678 kB | Shaun Ewing | Nov 20, 1934 00:00 |
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US-1981793-A // Sound reproducer // Keller Arthur C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Nov 20, 1934 00:00 | US-1981793-A // Sound reproducer // Keller Arthur C. // Bell Telephone Labor Inc | ||||
| PDF File 2019637.pdf | 678 kB | Shaun Ewing | Nov 05, 1935 00:00 |
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US-2019637-A // Volume control circuit // Shelleng John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 678 kB | Shaun Ewing | Nov 05, 1935 00:00 | US-2019637-A // Volume control circuit // Shelleng John C. // Bell Telephone Labor Inc | ||||
| PDF File 1917879.pdf | 677 kB | Shaun Ewing | Jul 11, 1933 00:00 |
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US-1917879-A // Telephone system // Draper John B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jul 11, 1933 00:00 | US-1917879-A // Telephone system // Draper John B. // Bell Telephone Labor Inc | ||||
| PDF File 2205072.pdf | 677 kB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2205072-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jun 18, 1940 00:00 | US-2205072-A // Space discharge apparatus and circuits therefor // Skellett Albert M. // Bell Telephone Labor Inc | ||||
| PDF File 2066528.pdf | 677 kB | Shaun Ewing | Jan 05, 1937 00:00 |
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US-2066528-A // Synchronous control of oscillators // Harper Augustus E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jan 05, 1937 00:00 | US-2066528-A // Synchronous control of oscillators // Harper Augustus E. // Bell Telephone Labor Inc | ||||
| PDF File 2049177.pdf | 677 kB | Shaun Ewing | Jul 28, 1936 00:00 |
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US-2049177-A // Frequency generating system // Rumpel Carl H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jul 28, 1936 00:00 | US-2049177-A // Frequency generating system // Rumpel Carl H. // Bell Telephone Labor Inc | ||||
| PDF File 2173335.pdf | 677 kB | Shaun Ewing | Sept 19, 1939 00:00 |
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US-2173335-A // Telegraph exchange system // Kinkead Fullerton S. ; Singer Fred J. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Sept 19, 1939 00:00 | US-2173335-A // Telegraph exchange system // Kinkead Fullerton S. ; Singer Fred J. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1863073.pdf | 676 kB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1863073-A // Method and means for tensioning and for mounting diaphragms // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 676 kB | Shaun Ewing | Jun 14, 1932 00:00 | US-1863073-A // Method and means for tensioning and for mounting diaphragms // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 2040334.pdf | 676 kB | Shaun Ewing | May 12, 1936 00:00 |
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US-2040334-A // Cross bar switch // Reynolds John N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 676 kB | Shaun Ewing | May 12, 1936 00:00 | US-2040334-A // Cross bar switch // Reynolds John N. // Bell Telephone Labor Inc | ||||
| PDF File 2165798.pdf | 676 kB | Shaun Ewing | Jul 11, 1939 00:00 |
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US-2165798-A // Relay // Kannenberg Walter F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 676 kB | Shaun Ewing | Jul 11, 1939 00:00 | US-2165798-A // Relay // Kannenberg Walter F. // Bell Telephone Labor Inc |
