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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1715542.pdf | 417 kB | Shaun Ewing | Jun 04, 1929 00:00 |
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US-1715542-A // Electrical coils and system employing such coils // Elmen Gustaf W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 417 kB | Shaun Ewing | Jun 04, 1929 00:00 | US-1715542-A // Electrical coils and system employing such coils // Elmen Gustaf W. // Bell Telephone Labor Inc | ||||
| PDF File 1714683.pdf | 419 kB | Shaun Ewing | May 28, 1929 00:00 |
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US-1714683-A // Electrical insulation // Lowry Homer H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 419 kB | Shaun Ewing | May 28, 1929 00:00 | US-1714683-A // Electrical insulation // Lowry Homer H. // Bell Telephone Labor Inc | ||||
| PDF File 1711690.pdf | 513 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711690-A // Phonograph-record-recording machine // Richard Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 513 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711690-A // Phonograph-record-recording machine // Richard Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 1711689.pdf | 223 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711689-A // Rotary mercury interrupter // Pierce Paul H. ; Means Winthrop J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 223 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711689-A // Rotary mercury interrupter // Pierce Paul H. ; Means Winthrop J. // Bell Telephone Labor Inc | ||||
| PDF File 1711687.pdf | 260 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711687-A // Telephone calling dial // Miller Victor F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 260 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711687-A // Telephone calling dial // Miller Victor F. // Bell Telephone Labor Inc | ||||
| PDF File 1711684.pdf | 343 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711684-A // Method of making half tones // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 343 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711684-A // Method of making half tones // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1711682.pdf | 609 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711682-A // Telephone-exchange system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 609 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711682-A // Telephone-exchange system // Hovland Henry // Bell Telephone Labor Inc | ||||
| PDF File 1711673.pdf | 322 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711673-A // Vacuum-tube base // Crawford Allen I. ; Sample Ralph M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 322 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711673-A // Vacuum-tube base // Crawford Allen I. ; Sample Ralph M. // Bell Telephone Labor Inc | ||||
| PDF File 1711666.pdf | 568 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711666-A // Sound reproducing and recording device // Adams Edgar Whittington // Bell Telephone Labor Inc | |||
| Version 1 (current) | 568 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711666-A // Sound reproducing and recording device // Adams Edgar Whittington // 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 1711661.pdf | 618 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711661-A // Regulator system // Stoller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 618 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711661-A // Regulator system // Stoller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1711651.pdf | 328 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711651-A // Signaling system // Pruden Harold M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 328 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711651-A // Signaling system // Pruden Harold M. // Bell Telephone Labor Inc | ||||
| PDF File 1709554.pdf | 449 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1709554-A // Voice-frequency calling system // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 449 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1709554-A // Voice-frequency calling system // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 1708983.pdf | 2.98 MB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708983-A // Telephone system // Vroom Edward ; Entz Ferdinand S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.98 MB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708983-A // Telephone system // Vroom Edward ; Entz Ferdinand S. // Bell Telephone Labor Inc | ||||
| PDF File 1708960.pdf | 887 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708960-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 887 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708960-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | ||||
| PDF File 1708955.pdf | 365 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708955-A // Relay commutator // Pruden Harold M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 365 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708955-A // Relay commutator // Pruden Harold M. // Bell Telephone Labor Inc | ||||
| PDF File 1708946.pdf | 1015 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708946-A // Telephone-exchange system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1015 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708946-A // Telephone-exchange system // Hovland Henry // Bell Telephone Labor Inc | ||||
| PDF File 1708939.pdf | 219 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708939-A // Electron-discharge device // Crawford Allen I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708939-A // Electron-discharge device // Crawford Allen I. // Bell Telephone Labor Inc | ||||
| PDF File 1708936.pdf | 635 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708936-A // Magnetic material // Cioffi Paul P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 635 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708936-A // Magnetic material // Cioffi Paul P. // Bell Telephone Labor Inc | ||||
| PDF File 1708935.pdf | 213 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708935-A // Coil and transformer // Christopher Arthur J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 213 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708935-A // Coil and transformer // Christopher Arthur J. // Bell Telephone Labor Inc |
