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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1654085.pdf | 413 kB | Shaun Ewing | Dec 27, 1927 00:00 |
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US-1654085-A // Voltage-limiting device // Lorance George T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 413 kB | Shaun Ewing | Dec 27, 1927 00:00 | US-1654085-A // Voltage-limiting device // Lorance George T. // Bell Telephone Labor Inc | ||||
| PDF File 1654923.pdf | 326 kB | Shaun Ewing | Jan 03, 1928 00:00 |
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US-1654923-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 326 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1654923-A // Telephone system // Dehn Joseph W. // Bell Telephone Labor Inc | ||||
| PDF File 1655048.pdf | 320 kB | Shaun Ewing | Jan 03, 1928 00:00 |
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US-1655048-A // Electrical coil system // Monte Robert W. De // Bell Telephone Labor Inc | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1655048-A // Electrical coil system // Monte Robert W. De // 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 | ||||
| PDF File 1655059.pdf | 239 kB | Shaun Ewing | Jan 03, 1928 00:00 |
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US-1655059-A // Selector switch // Hess George K. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 239 kB | Shaun Ewing | Jan 03, 1928 00:00 | US-1655059-A // Selector switch // Hess George K. // Bell Telephone Labor Inc | ||||
| PDF File 1655061.pdf | 1.42 MB | Shaun Ewing | Jan 03, 1928 00:00 |
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US-1655061-A // Telephone-exchange system // Jordan William C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.42 MB | Shaun Ewing | Jan 03, 1928 00:00 | US-1655061-A // Telephone-exchange system // Jordan William C. // Bell Telephone Labor Inc | ||||
| PDF File 1656737.pdf | 434 kB | Shaun Ewing | Jan 17, 1928 00:00 |
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US-1656737-A // Insulating material and method of producing the same // Kemp Archie R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 434 kB | Shaun Ewing | Jan 17, 1928 00:00 | US-1656737-A // Insulating material and method of producing the same // Kemp Archie R. // Bell Telephone Labor Inc | ||||
| PDF File 1658192.pdf | 487 kB | Shaun Ewing | Feb 07, 1928 00:00 |
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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 1658197.pdf | 504 kB | Shaun Ewing | Feb 07, 1928 00:00 |
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US-1658197-A // Telephone-exchange system // Hinrichsen Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 504 kB | Shaun Ewing | Feb 07, 1928 00:00 | US-1658197-A // Telephone-exchange system // Hinrichsen Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 1658210.pdf | 457 kB | Shaun Ewing | Feb 07, 1928 00:00 |
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US-1658210-A // Electric-wave signaling system // Ryan Francis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Feb 07, 1928 00:00 | US-1658210-A // Electric-wave signaling system // Ryan Francis M. // Bell Telephone Labor Inc | ||||
| PDF File 1658315.pdf | 228 kB | Shaun Ewing | Feb 07, 1928 00:00 |
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US-1658315-A // Battery // Wheeler Edmund B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 228 kB | Shaun Ewing | Feb 07, 1928 00:00 | US-1658315-A // Battery // Wheeler Edmund B. // Bell Telephone Labor Inc | ||||
| PDF File 1658843.pdf | 335 kB | Shaun Ewing | Feb 14, 1928 00:00 |
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US-1658843-A // Modulating system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 335 kB | Shaun Ewing | Feb 14, 1928 00:00 | US-1658843-A // Modulating system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1660975.pdf | 1015 kB | Shaun Ewing | Feb 28, 1928 00:00 |
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US-1660975-A // Telephone system // Quass Ralph L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1015 kB | Shaun Ewing | Feb 28, 1928 00:00 | US-1660975-A // Telephone system // Quass Ralph L. // Bell Telephone Labor Inc | ||||
| PDF File 1660979.pdf | 250 kB | Shaun Ewing | Feb 28, 1928 00:00 |
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US-1660979-A // Current-control device // Thayer Walter J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 250 kB | Shaun Ewing | Feb 28, 1928 00:00 | US-1660979-A // Current-control device // Thayer Walter J. // Bell Telephone Labor Inc | ||||
| PDF File 1660996.pdf | 317 kB | Shaun Ewing | Feb 28, 1928 00:00 |
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US-1660996-A // Combined radio loud speaker and phonograph // Holland Newman Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 317 kB | Shaun Ewing | Feb 28, 1928 00:00 | US-1660996-A // Combined radio loud speaker and phonograph // Holland Newman Henry // Bell Telephone Labor Inc | ||||
| PDF File 1662071.pdf | 578 kB | Shaun Ewing | Mar 13, 1928 00:00 |
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US-1662071-A // Regulating system // Manderfeld Emanuel C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 578 kB | Shaun Ewing | Mar 13, 1928 00:00 | US-1662071-A // Regulating system // Manderfeld Emanuel C. // Bell Telephone Labor Inc | ||||
| PDF File 1662085.pdf | 727 kB | Shaun Ewing | Mar 13, 1928 00:00 |
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US-1662085-A // Regulating system // Stoller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 727 kB | Shaun Ewing | Mar 13, 1928 00:00 | US-1662085-A // Regulating system // Stoller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1662966.pdf | 526 kB | Shaun Ewing | Mar 20, 1928 00:00 |
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US-1662966-A // Substation circuit // Foley John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Mar 20, 1928 00:00 | US-1662966-A // Substation circuit // Foley John W. // Bell Telephone Labor Inc | ||||
| PDF File 1665338.pdf | 1.68 MB | Shaun Ewing | Apr 10, 1928 00:00 |
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US-1665338-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.68 MB | Shaun Ewing | Apr 10, 1928 00:00 | US-1665338-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | ||||
| PDF File 1666195.pdf | 582 kB | Shaun Ewing | Apr 17, 1928 00:00 |
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US-1666195-A // Duplex telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 582 kB | Shaun Ewing | Apr 17, 1928 00:00 | US-1666195-A // Duplex telegraph system // Clokey Allison A. // Bell Telephone Labor Inc |
