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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1633615.pdf | 459 kB | Shaun Ewing | Jun 28, 1927 00:00 |
|
US-1633615-A // Delay circuits for voice-operated devices // Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 459 kB | Shaun Ewing | Jun 28, 1927 00:00 | US-1633615-A // Delay circuits for voice-operated devices // Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1633625.pdf | 309 kB | Shaun Ewing | Jun 28, 1927 00:00 |
|
US-1633625-A // Secrecy system // Rspenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Jun 28, 1927 00:00 | US-1633625-A // Secrecy system // Rspenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1634271.pdf | 261 kB | Shaun Ewing | Jul 05, 1927 00:00 |
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US-1634271-A // Composite ringer // Shackleton Samuel P. // American Telephone & Telegraph | |||
| Version 1 (current) | 261 kB | Shaun Ewing | Jul 05, 1927 00:00 | US-1634271-A // Composite ringer // Shackleton Samuel P. // American Telephone & Telegraph | ||||
| PDF File 1634286.pdf | 321 kB | Shaun Ewing | Jul 05, 1927 00:00 |
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US-1634286-A // Telegraph circuits // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 321 kB | Shaun Ewing | Jul 05, 1927 00:00 | US-1634286-A // Telegraph circuits // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1634299.pdf | 348 kB | Shaun Ewing | Jul 05, 1927 00:00 |
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US-1634299-A // Telegraph circuits // Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 348 kB | Shaun Ewing | Jul 05, 1927 00:00 | US-1634299-A // Telegraph circuits // Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1634734.pdf | 609 kB | Shaun Ewing | Jul 05, 1927 00:00 |
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US-1634734-A // Telephone-exchange system // Blauvelt William G. // American Telephone & Telegraph | |||
| Version 1 (current) | 609 kB | Shaun Ewing | Jul 05, 1927 00:00 | US-1634734-A // Telephone-exchange system // Blauvelt William G. // American Telephone & Telegraph | ||||
| PDF File 1635207.pdf | 288 kB | Shaun Ewing | Jul 12, 1927 00:00 |
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US-1635207-A // Carrier current telegraphy // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 288 kB | Shaun Ewing | Jul 12, 1927 00:00 | US-1635207-A // Carrier current telegraphy // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1635209.pdf | 408 kB | Shaun Ewing | Jul 12, 1927 00:00 |
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US-1635209-A // Telegraph distortion-measuring system // Fell John M. // American Telephone & Telegraph | |||
| Version 1 (current) | 408 kB | Shaun Ewing | Jul 12, 1927 00:00 | US-1635209-A // Telegraph distortion-measuring system // Fell John M. // American Telephone & Telegraph | ||||
| PDF File 1635227.pdf | 706 kB | Shaun Ewing | Jul 12, 1927 00:00 |
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US-1635227-A // Cord-circuit repeater // Shackleton Samuel P. ; Glezen Lee L. // American Telephone & Telegraph | |||
| Version 1 (current) | 706 kB | Shaun Ewing | Jul 12, 1927 00:00 | US-1635227-A // Cord-circuit repeater // Shackleton Samuel P. ; Glezen Lee L. // American Telephone & Telegraph | ||||
| PDF File 1636031.pdf | 254 kB | Shaun Ewing | Jul 19, 1927 00:00 |
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US-1636031-A // Voice-operated relay equipment // Wright Sumner B. // American Telephone & Telegraph | |||
| Version 1 (current) | 254 kB | Shaun Ewing | Jul 19, 1927 00:00 | US-1636031-A // Voice-operated relay equipment // Wright Sumner B. // American Telephone & Telegraph | ||||
| PDF File 1636053.pdf | 754 kB | Shaun Ewing | Jul 19, 1927 00:00 |
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US-1636053-A // Carrier-telegraph repeater circuits // Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 754 kB | Shaun Ewing | Jul 19, 1927 00:00 | US-1636053-A // Carrier-telegraph repeater circuits // Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1636054.pdf | 429 kB | Shaun Ewing | Jul 19, 1927 00:00 |
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US-1636054-A // Electrical discharge device // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 429 kB | Shaun Ewing | Jul 19, 1927 00:00 | US-1636054-A // Electrical discharge device // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1636713.pdf | 355 kB | Shaun Ewing | Jul 26, 1927 00:00 |
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US-1636713-A // Electrical wave filter // Reier George C. // American Telephone & Telegraph | |||
| Version 1 (current) | 355 kB | Shaun Ewing | Jul 26, 1927 00:00 | US-1636713-A // Electrical wave filter // Reier George C. // American Telephone & Telegraph | ||||
| PDF File 1636737.pdf | 350 kB | Shaun Ewing | Jul 26, 1927 00:00 |
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US-1636737-A // Electrical wave filter // Dietze Eginhard // American Telephone & Telegraph | |||
| Version 1 (current) | 350 kB | Shaun Ewing | Jul 26, 1927 00:00 | US-1636737-A // Electrical wave filter // Dietze Eginhard // American Telephone & Telegraph | ||||
| PDF File 1637324.pdf | 1.81 MB | Shaun Ewing | Jul 26, 1927 00:00 |
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US-1637324-A // Printing-telegraph-exchange system // Perry Donald B. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.81 MB | Shaun Ewing | Jul 26, 1927 00:00 | US-1637324-A // Printing-telegraph-exchange system // Perry Donald B. // American Telephone & Telegraph | ||||
| PDF File 1637403.pdf | 696 kB | Shaun Ewing | Aug 02, 1927 00:00 |
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US-1637403-A // Telephone system // Abbott Henry H. // American Telephone & Telegraph | |||
| Version 1 (current) | 696 kB | Shaun Ewing | Aug 02, 1927 00:00 | US-1637403-A // Telephone system // Abbott Henry H. // American Telephone & Telegraph | ||||
| PDF File 1637404.pdf | 389 kB | Shaun Ewing | Aug 02, 1927 00:00 |
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US-1637404-A // Signaling system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Aug 02, 1927 00:00 | US-1637404-A // Signaling system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1637419.pdf | 123 kB | Shaun Ewing | Aug 02, 1927 00:00 |
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US-1637419-A // Nail-expansion anchor // Klein Harles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 123 kB | Shaun Ewing | Aug 02, 1927 00:00 | US-1637419-A // Nail-expansion anchor // Klein Harles H. // American Telephone & Telegraph | ||||
| PDF File 1638430.pdf | 705 kB | Shaun Ewing | Aug 09, 1927 00:00 |
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US-1638430-A // Straightforward trunking system // Bailey Rand S. ; Broe Edgar P. // American Telephone & Telegraph | |||
| Version 1 (current) | 705 kB | Shaun Ewing | Aug 09, 1927 00:00 | US-1638430-A // Straightforward trunking system // Bailey Rand S. ; Broe Edgar P. // American Telephone & Telegraph | ||||
| PDF File 1638432.pdf | 262 kB | Shaun Ewing | Aug 09, 1927 00:00 |
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US-1638432-A // Strand tightener // Connors Neilson D. // American Telephone & Telegraph | |||
| Version 1 (current) | 262 kB | Shaun Ewing | Aug 09, 1927 00:00 | US-1638432-A // Strand tightener // Connors Neilson D. // American Telephone & Telegraph |
