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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1759623.pdf | 806 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759623-A // Signaling system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 806 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759623-A // Signaling system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1759612.pdf | 541 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759612-A // Method of producing magnetic bodies // Given Frederick J. ; Greenidge Ralph M. C. ; Jr. John R. Weeks, // Bell Telephone Labor Inc | |||
| Version 1 (current) | 541 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759612-A // Method of producing magnetic bodies // Given Frederick J. ; Greenidge Ralph M. C. ; Jr. John R. Weeks, // Bell Telephone Labor Inc | ||||
| PDF File 1759610.pdf | 291 kB | Shaun Ewing | May 20, 1930 00:00 |
|
US-1759610-A // Radio receiving set // Fisher George H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 291 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759610-A // Radio receiving set // Fisher George H. // Bell Telephone Labor Inc | ||||
| PDF File 1759604.pdf | 687 kB | Shaun Ewing | May 20, 1930 00:00 |
|
US-1759604-A // Indicating device // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 687 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759604-A // Indicating device // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1759504.pdf | 983 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759504-A // Electrooptical transmission // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 983 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759504-A // Electrooptical transmission // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1759332.pdf | 815 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759332-A // Wave transmission circuit // Whittle Horace ; Grimley Donald G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 815 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759332-A // Wave transmission circuit // Whittle Horace ; Grimley Donald G. // Bell Telephone Labor Inc | ||||
| PDF File 1757736.pdf | 276 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757736-A // Lubricating device // Pritchard William T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 276 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757736-A // Lubricating device // Pritchard William T. // Bell Telephone Labor Inc | ||||
| PDF File 1757727.pdf | 546 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757727-A // Electric control device // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 546 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757727-A // Electric control device // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1757712.pdf | 740 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757712-A // Acoustic device // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 740 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757712-A // Acoustic device // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1757708.pdf | 1.20 MB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757708-A // Telephone-exchange system // Everett Samuel H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.20 MB | Shaun Ewing | May 06, 1930 00:00 | US-1757708-A // Telephone-exchange system // Everett Samuel H. // Bell Telephone Labor Inc | ||||
| PDF File 1757704.pdf | 372 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757704-A // Contact-drive vibratory fork // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 372 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757704-A // Contact-drive vibratory fork // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1757703.pdf | 464 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757703-A // Electrical contact device // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 464 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757703-A // Electrical contact device // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1757465.pdf | 327 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757465-A // Acoustic device // Moore Charles R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 327 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757465-A // Acoustic device // Moore Charles R. // Bell Telephone Labor Inc | ||||
| PDF File 1757464.pdf | 371 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757464-A // Coin-collection apparatus // Melick John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 371 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757464-A // Coin-collection apparatus // Melick John M. // Bell Telephone Labor Inc | ||||
| PDF File 1757178.pdf | 140 kB | Shaun Ewing | May 06, 1930 00:00 |
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US-1757178-A // Magnetic material // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 140 kB | Shaun Ewing | May 06, 1930 00:00 | US-1757178-A // Magnetic material // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1756705.pdf | 274 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756705-A // Voice screen // Jr. Walter F. Smith, ; Crabtree Theodore H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 274 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756705-A // Voice screen // Jr. Walter F. Smith, ; Crabtree Theodore H. // Bell Telephone Labor Inc | ||||
| PDF File 1756573.pdf | 671 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756573-A // Regulator system // Stoller Hugh M. ; Porter George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756573-A // Regulator system // Stoller Hugh M. ; Porter George C. // Bell Telephone Labor Inc | ||||
| PDF File 1756274.pdf | 391 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756274-A // Signaling conductor // Anderegg Gustavus A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756274-A // Signaling conductor // Anderegg Gustavus A. // Bell Telephone Labor Inc | ||||
| PDF File 1753353.pdf | 408 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753353-A // Electrical system for secret transmission // Steinberg John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 408 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753353-A // Electrical system for secret transmission // Steinberg John C. // Bell Telephone Labor Inc | ||||
| PDF File 1753348.pdf | 3.58 MB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753348-A // Monitoring system // Newsom James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.58 MB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753348-A // Monitoring system // Newsom James B. // Bell Telephone Labor Inc |
