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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1697042.pdf | 218 kB | Shaun Ewing | Jan 01, 1929 00:00 |
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US-1697042-A // Radio receiving system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 218 kB | Shaun Ewing | Jan 01, 1929 00:00 | US-1697042-A // Radio receiving system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1696417.pdf | 378 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696417-A // Voltage regulator // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 378 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696417-A // Voltage regulator // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1696416.pdf | 256 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696416-A // Voltage regulator // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 256 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696416-A // Voltage regulator // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1696415.pdf | 592 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696415-A // Voltage-balance regulator // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 592 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696415-A // Voltage-balance regulator // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1695328.pdf | 400 kB | Shaun Ewing | Dec 18, 1928 00:00 |
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US-1695328-A // Adjustable reference book // Gordon Walter A. ; Murphy James J. ; Perrone Pascal // American Telephone & Telegraph | |||
| Version 1 (current) | 400 kB | Shaun Ewing | Dec 18, 1928 00:00 | US-1695328-A // Adjustable reference book // Gordon Walter A. ; Murphy James J. ; Perrone Pascal // American Telephone & Telegraph | ||||
| PDF File 1695314.pdf | 1.32 MB | Shaun Ewing | Dec 18, 1928 00:00 |
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US-1695314-A // Telephone system // Bascom Henry M. ; Abbott Henry H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Dec 18, 1928 00:00 | US-1695314-A // Telephone system // Bascom Henry M. ; Abbott Henry H. // American Telephone & Telegraph | ||||
| PDF File 1695312.pdf | 1.33 MB | Shaun Ewing | Dec 18, 1928 00:00 |
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US-1695312-A // Telephone system // Abbott Henry H. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Dec 18, 1928 00:00 | US-1695312-A // Telephone system // Abbott Henry H. // American Telephone & Telegraph | ||||
| PDF File 1695049.pdf | 1.47 MB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695049-A // Telephone-exchange system // Jacobsen Emil ; Sperry Arthur B. // American Telephone & Telegraph ; Western Electric Co | |||
| Version 1 (current) | 1.47 MB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695049-A // Telephone-exchange system // Jacobsen Emil ; Sperry Arthur B. // American Telephone & Telegraph ; Western Electric Co | ||||
| PDF File 1695043.pdf | 2.14 MB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695043-A // Telephone-exchange system // Haines William T. ; Harper Robert W. // American Telephone & Telegraph ; Western Electric Co | |||
| Version 1 (current) | 2.14 MB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695043-A // Telephone-exchange system // Haines William T. ; Harper Robert W. // American Telephone & Telegraph ; Western Electric Co | ||||
| PDF File 1694429.pdf | 300 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1694429-A // Auxiliary dialing tool // Peak Warner L. // American Telephone & Telegraph | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1694429-A // Auxiliary dialing tool // Peak Warner L. // American Telephone & Telegraph | ||||
| PDF File 1694425.pdf | 634 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1694425-A // Electrical testing system // Mccurdy Ralph G. ; Blye Paul W. // American Telephone & Telegraph | |||
| Version 1 (current) | 634 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1694425-A // Electrical testing system // Mccurdy Ralph G. ; Blye Paul W. // American Telephone & Telegraph | ||||
| PDF File 1694415.pdf | 286 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1694415-A // Insulator // Gordon Chester S. // American Telephone & Telegraph | |||
| Version 1 (current) | 286 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1694415-A // Insulator // Gordon Chester S. // American Telephone & Telegraph | ||||
| PDF File 1694406.pdf | 895 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1694406-A // Telephone-exchange system // Bascom Henry M. ; Jacobsen Emil // American Telephone & Telegraph | |||
| Version 1 (current) | 895 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1694406-A // Telephone-exchange system // Bascom Henry M. ; Jacobsen Emil // American Telephone & Telegraph | ||||
| PDF File 1693685.pdf | 206 kB | Shaun Ewing | Dec 04, 1928 00:00 |
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US-1693685-A // Method and apparatus for transmission of pictures // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 206 kB | Shaun Ewing | Dec 04, 1928 00:00 | US-1693685-A // Method and apparatus for transmission of pictures // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1693662.pdf | 447 kB | Shaun Ewing | Dec 04, 1928 00:00 |
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US-1693662-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Dec 04, 1928 00:00 | US-1693662-A // Radio signaling system // Ohl Russell S. // American Telephone & Telegraph | ||||
| PDF File 1693659.pdf | 520 kB | Shaun Ewing | Dec 04, 1928 00:00 |
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US-1693659-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Dec 04, 1928 00:00 | US-1693659-A // Echo suppressor // Nyquist Harry ; Pfleger Kenneth W. // American Telephone & Telegraph | ||||
| PDF File 1693653.pdf | 136 kB | Shaun Ewing | Dec 04, 1928 00:00 |
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US-1693653-A // Battery supply circuit // Mckown Frederick W. // American Telephone & Telegraph | |||
| Version 1 (current) | 136 kB | Shaun Ewing | Dec 04, 1928 00:00 | US-1693653-A // Battery supply circuit // Mckown Frederick W. // American Telephone & Telegraph | ||||
| PDF File 1692961.pdf | 230 kB | Shaun Ewing | Nov 27, 1928 00:00 |
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US-1692961-A // Alternating-current relay // Thompson Elmer O. // American Telephone & Telegraph | |||
| Version 1 (current) | 230 kB | Shaun Ewing | Nov 27, 1928 00:00 | US-1692961-A // Alternating-current relay // Thompson Elmer O. // American Telephone & Telegraph | ||||
| PDF File 1692907.pdf | 282 kB | Shaun Ewing | Nov 27, 1928 00:00 |
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US-1692907-A // Relaying arrangement // Shackleton Samuel P. ; Hansen Arnold A. // American Telephone & Telegraph | |||
| Version 1 (current) | 282 kB | Shaun Ewing | Nov 27, 1928 00:00 | US-1692907-A // Relaying arrangement // Shackleton Samuel P. ; Hansen Arnold A. // American Telephone & Telegraph | ||||
| PDF File 1692904.pdf | 267 kB | Shaun Ewing | Nov 27, 1928 00:00 |
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US-1692904-A // Amplification of photo-electric call response // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 267 kB | Shaun Ewing | Nov 27, 1928 00:00 | US-1692904-A // Amplification of photo-electric call response // Potter Ralph K. // American Telephone & Telegraph |
