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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1831881.pdf | 529 kB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1831881-A // Radio signal measuring device // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Nov 17, 1931 00:00 | US-1831881-A // Radio signal measuring device // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1830896.pdf | 573 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1830896-A // Adjustable electric filter system // Wintringham William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 573 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1830896-A // Adjustable electric filter system // Wintringham William T. // American Telephone & Telegraph | ||||
| PDF File 1830880.pdf | 382 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1830880-A // Antenna circuit // Misenheimer Harvey N. // American Telephone & Telegraph | |||
| Version 1 (current) | 382 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1830880-A // Antenna circuit // Misenheimer Harvey N. // American Telephone & Telegraph | ||||
| PDF File 1830873.pdf | 1.09 MB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1830873-A // Telephone system // Haines William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | Nov 10, 1931 00:00 | US-1830873-A // Telephone system // Haines William T. // American Telephone & Telegraph | ||||
| PDF File 1830864.pdf | 874 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1830864-A // Elimination of radio interference due to printing telegraph // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 874 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1830864-A // Elimination of radio interference due to printing telegraph // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1830834.pdf | 547 kB | Shaun Ewing | Nov 10, 1931 00:00 |
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US-1830834-A // Telephone system // Green Irving W. // American Telephone & Telegraph | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Nov 10, 1931 00:00 | US-1830834-A // Telephone system // Green Irving W. // American Telephone & Telegraph | ||||
| PDF File 1829838.pdf | 1.17 MB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829838-A // Transmission delay measuring system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829838-A // Transmission delay measuring system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1829837.pdf | 244 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829837-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | |||
| Version 1 (current) | 244 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829837-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | ||||
| PDF File 1829836.pdf | 234 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829836-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | |||
| Version 1 (current) | 234 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829836-A // Signaling system // Newby Neal D. // American Telephone & Telegraph | ||||
| PDF File 1829830.pdf | 729 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829830-A // Pilot channel for telegraph systems // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 729 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829830-A // Pilot channel for telegraph systems // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1829825.pdf | 758 kB | Shaun Ewing | Nov 03, 1931 00:00 |
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US-1829825-A // Brake for power driven shafts // Freeman Albert E. ; Livermore William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 758 kB | Shaun Ewing | Nov 03, 1931 00:00 | US-1829825-A // Brake for power driven shafts // Freeman Albert E. ; Livermore William T. // American Telephone & Telegraph | ||||
| PDF File 1829185.pdf | 876 kB | Shaun Ewing | Oct 27, 1931 00:00 |
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US-1829185-A // Method and means for measuring distortion of telegraph signals // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 876 kB | Shaun Ewing | Oct 27, 1931 00:00 | US-1829185-A // Method and means for measuring distortion of telegraph signals // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1828823.pdf | 541 kB | Shaun Ewing | Oct 27, 1931 00:00 |
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US-1828823-A // Combined telephone and telegraph system // Taylor Edmund R. // American Telephone & Telegraph | |||
| Version 1 (current) | 541 kB | Shaun Ewing | Oct 27, 1931 00:00 | US-1828823-A // Combined telephone and telegraph system // Taylor Edmund R. // American Telephone & Telegraph | ||||
| PDF File 1828803.pdf | 373 kB | Shaun Ewing | Oct 27, 1931 00:00 |
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US-1828803-A // Multiple drive apparatus // Freeman Albert E. ; Livermore William T. // American Telephone & Telegraph | |||
| Version 1 (current) | 373 kB | Shaun Ewing | Oct 27, 1931 00:00 | US-1828803-A // Multiple drive apparatus // Freeman Albert E. ; Livermore William T. // American Telephone & Telegraph | ||||
| PDF File 1827860.pdf | 361 kB | Shaun Ewing | Oct 20, 1931 00:00 |
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US-1827860-A // Carrier telegraph system // Thorp Vaughn P. // American Telephone & Telegraph | |||
| Version 1 (current) | 361 kB | Shaun Ewing | Oct 20, 1931 00:00 | US-1827860-A // Carrier telegraph system // Thorp Vaughn P. // American Telephone & Telegraph | ||||
| PDF File 1827855.pdf | 524 kB | Shaun Ewing | Oct 20, 1931 00:00 |
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US-1827855-A // Reeling device // Parker Lee T. // American Telephone & Telegraph | |||
| Version 1 (current) | 524 kB | Shaun Ewing | Oct 20, 1931 00:00 | US-1827855-A // Reeling device // Parker Lee T. // American Telephone & Telegraph | ||||
| PDF File 1827843.pdf | 816 kB | Shaun Ewing | Oct 20, 1931 00:00 |
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US-1827843-A // Piezo electric frequency eliminator // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 816 kB | Shaun Ewing | Oct 20, 1931 00:00 | US-1827843-A // Piezo electric frequency eliminator // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1826812.pdf | 910 kB | Shaun Ewing | Oct 13, 1931 00:00 |
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US-1826812-A // Electrooptical transmission // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 910 kB | Shaun Ewing | Oct 13, 1931 00:00 | US-1826812-A // Electrooptical transmission // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1826717.pdf | 271 kB | Shaun Ewing | Oct 13, 1931 00:00 |
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US-1826717-A // Dispensing device // Bartenbach Herman // American Telephone & Telegraph | |||
| Version 1 (current) | 271 kB | Shaun Ewing | Oct 13, 1931 00:00 | US-1826717-A // Dispensing device // Bartenbach Herman // American Telephone & Telegraph | ||||
| PDF File 1826196.pdf | 515 kB | Shaun Ewing | Oct 06, 1931 00:00 |
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US-1826196-A // Echo suppressor // Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 515 kB | Shaun Ewing | Oct 06, 1931 00:00 | US-1826196-A // Echo suppressor // Abraham Leonard G. // American Telephone & Telegraph |
