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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1700457.pdf | 498 kB | Shaun Ewing | Jan 29, 1929 00:00 |
|
US-1700457-A // Acoustic device // Thuras Albert L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 498 kB | Shaun Ewing | Jan 29, 1929 00:00 | US-1700457-A // Acoustic device // Thuras Albert L. // Bell Telephone Labor Inc | ||||
| PDF File 1734624.pdf | 497 kB | Shaun Ewing | Nov 05, 1929 00:00 |
|
US-1734624-A // Piston diaphragm having tangential corrugations // Harrison Henry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | Nov 05, 1929 00:00 | US-1734624-A // Piston diaphragm having tangential corrugations // Harrison Henry C. // Bell Telephone Labor Inc | ||||
| PDF File 1747833.pdf | 497 kB | Shaun Ewing | Feb 18, 1930 00:00 |
|
US-1747833-A // Telephone-switchboard system // King Gerald V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 497 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747833-A // Telephone-switchboard system // King Gerald V. // Bell Telephone Labor Inc | ||||
| PDF File 1752550.pdf | 495 kB | Shaun Ewing | Apr 01, 1930 00:00 |
|
US-1752550-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 495 kB | Shaun Ewing | Apr 01, 1930 00:00 | US-1752550-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1762727.pdf | 493 kB | Shaun Ewing | Jun 10, 1930 00:00 |
|
US-1762727-A // Volume-control system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 493 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762727-A // Volume-control system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1778750.pdf | 492 kB | Shaun Ewing | Oct 21, 1930 00:00 |
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US-1778750-A // Transmission regulation // Bruce Edmond // Bell Telephone Labor Inc | |||
| Version 1 (current) | 492 kB | Shaun Ewing | Oct 21, 1930 00:00 | US-1778750-A // Transmission regulation // Bruce Edmond // Bell Telephone Labor Inc | ||||
| PDF File 1743711.pdf | 487 kB | Shaun Ewing | Jan 14, 1930 00:00 |
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US-1743711-A // Supervisory system // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 487 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743711-A // Supervisory system // Field Joseph C. // Bell Telephone Labor Inc | ||||
| PDF File 1658192.pdf | 487 kB | Shaun Ewing | Feb 07, 1928 00:00 |
|
US-1658192-A // Brake for rolling ladders // Hampton Leon N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 487 kB | Shaun Ewing | Feb 07, 1928 00:00 | US-1658192-A // Brake for rolling ladders // Hampton Leon N. // Bell Telephone Labor Inc | ||||
| PDF File 1762981.pdf | 486 kB | Shaun Ewing | Jun 10, 1930 00:00 |
|
US-1762981-A // Acoustic device // Hartley Ralph V. L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 486 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762981-A // Acoustic device // Hartley Ralph V. L. // Bell Telephone Labor Inc | ||||
| PDF File 1711664.pdf | 486 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711664-A // Transmission system // Williams Samuel B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 486 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711664-A // Transmission system // Williams Samuel B. // Bell Telephone Labor Inc | ||||
| PDF File 1647990.pdf | 485 kB | Shaun Ewing | Nov 08, 1927 00:00 |
|
US-1647990-A // Telephone-exchange system // Goodrum Charles L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 485 kB | Shaun Ewing | Nov 08, 1927 00:00 | US-1647990-A // Telephone-exchange system // Goodrum Charles L. // Bell Telephone Labor Inc | ||||
| PDF File 1768240.pdf | 484 kB | Shaun Ewing | Jun 24, 1930 00:00 |
|
US-1768240-A // Loading-coil case // Falk Arthur H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 484 kB | Shaun Ewing | Jun 24, 1930 00:00 | US-1768240-A // Loading-coil case // Falk Arthur H. // Bell Telephone Labor Inc | ||||
| PDF File 1719491.pdf | 480 kB | Shaun Ewing | Jul 02, 1929 00:00 |
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US-1719491-A // Electric regulator // Stoller Hugh M. ; Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 480 kB | Shaun Ewing | Jul 02, 1929 00:00 | US-1719491-A // Electric regulator // Stoller Hugh M. ; Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 1762968.pdf | 480 kB | Shaun Ewing | Jun 10, 1930 00:00 |
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US-1762968-A // Composite conductor // Farnsworth Frank F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 480 kB | Shaun Ewing | Jun 10, 1930 00:00 | US-1762968-A // Composite conductor // Farnsworth Frank F. // Bell Telephone Labor Inc | ||||
| PDF File 1695039.pdf | 479 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695039-A // Electric wave signaling system // Clement Lewis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695039-A // Electric wave signaling system // Clement Lewis M. // Bell Telephone Labor Inc | ||||
| PDF File 1689343.pdf | 476 kB | Shaun Ewing | Oct 30, 1928 00:00 |
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US-1689343-A // Telephone system // Hinrichsen Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 476 kB | Shaun Ewing | Oct 30, 1928 00:00 | US-1689343-A // Telephone system // Hinrichsen Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 1784830.pdf | 474 kB | Shaun Ewing | Dec 16, 1930 00:00 |
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US-1784830-A // Mechanical impedance device // Flanders Paul B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 474 kB | Shaun Ewing | Dec 16, 1930 00:00 | US-1784830-A // Mechanical impedance device // Flanders Paul B. // Bell Telephone Labor Inc | ||||
| PDF File 1733602.pdf | 468 kB | Shaun Ewing | Oct 29, 1929 00:00 |
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US-1733602-A // Telephone system // Johnson Herbert B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 468 kB | Shaun Ewing | Oct 29, 1929 00:00 | US-1733602-A // Telephone system // Johnson Herbert B. // 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 1655056.pdf | 463 kB | Shaun Ewing | Jan 03, 1928 00:00 |
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US-1655056-A // Selector switch // Goff Harold W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 463 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1655056-A // Selector switch // Goff Harold W. // Bell Telephone Labor Inc |
