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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1780963.pdf | 683 kB | Shaun Ewing | Nov 11, 1930 00:00 |
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US-1780963-A // Radio signaling system // Bailey Austin // American Telephone & Telegraph | |||
| Version 1 (current) | 683 kB | Shaun Ewing | Nov 11, 1930 00:00 | US-1780963-A // Radio signaling system // Bailey Austin // American Telephone & Telegraph | ||||
| PDF File 1780962.pdf | 959 kB | Shaun Ewing | Nov 11, 1930 00:00 |
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US-1780962-A // Radio signaling system // Bailey Austin ; Dean Samuel Winthrop // American Telephone & Telegraph | |||
| Version 1 (current) | 959 kB | Shaun Ewing | Nov 11, 1930 00:00 | US-1780962-A // Radio signaling system // Bailey Austin ; Dean Samuel Winthrop // American Telephone & Telegraph | ||||
| PDF File 1780364.pdf | 663 kB | Shaun Ewing | Nov 04, 1930 00:00 |
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US-1780364-A // Electrooptical transmission // Reynolds Frederick W. // American Telephone & Telegraph | |||
| Version 1 (current) | 663 kB | Shaun Ewing | Nov 04, 1930 00:00 | US-1780364-A // Electrooptical transmission // Reynolds Frederick W. // American Telephone & Telegraph | ||||
| PDF File 1780245.pdf | 390 kB | Shaun Ewing | Nov 04, 1930 00:00 |
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US-1780245-A // Telephone and telegraph system // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Nov 04, 1930 00:00 | US-1780245-A // Telephone and telegraph system // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1780244.pdf | 371 kB | Shaun Ewing | Nov 04, 1930 00:00 |
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US-1780244-A // Telephone and telegraph circuit // Ritter Paul E. // American Telephone & Telegraph | |||
| Version 1 (current) | 371 kB | Shaun Ewing | Nov 04, 1930 00:00 | US-1780244-A // Telephone and telegraph circuit // Ritter Paul E. // American Telephone & Telegraph | ||||
| PDF File 1780229.pdf | 408 kB | Shaun Ewing | Nov 04, 1930 00:00 |
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US-1780229-A // Oscillation generator // Green Estill I. // American Telephone & Telegraph | |||
| Version 1 (current) | 408 kB | Shaun Ewing | Nov 04, 1930 00:00 | US-1780229-A // Oscillation generator // Green Estill I. // American Telephone & Telegraph | ||||
| PDF File 1779500.pdf | 598 kB | Shaun Ewing | Oct 28, 1930 00:00 |
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US-1779500-A // Tone reception for carrier telegraphy // Shanck Roy B. // American Telephone & Telegraph | |||
| Version 1 (current) | 598 kB | Shaun Ewing | Oct 28, 1930 00:00 | US-1779500-A // Tone reception for carrier telegraphy // Shanck Roy B. // American Telephone & Telegraph | ||||
| PDF File 1779495.pdf | 444 kB | Shaun Ewing | Oct 28, 1930 00:00 |
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US-1779495-A // Substation rectification of carrier telegraph currents // Roberts Leland C. // American Telephone & Telegraph | |||
| Version 1 (current) | 444 kB | Shaun Ewing | Oct 28, 1930 00:00 | US-1779495-A // Substation rectification of carrier telegraph currents // Roberts Leland C. // American Telephone & Telegraph | ||||
| PDF File 1779493.pdf | 738 kB | Shaun Ewing | Oct 28, 1930 00:00 |
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US-1779493-A // Carrier-current telegraph system // Rea Wilton T. // American Telephone & Telegraph | |||
| Version 1 (current) | 738 kB | Shaun Ewing | Oct 28, 1930 00:00 | US-1779493-A // Carrier-current telegraph system // Rea Wilton T. // American Telephone & Telegraph | ||||
| PDF File 1779492.pdf | 1.02 MB | Shaun Ewing | Oct 28, 1930 00:00 |
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US-1779492-A // Carrier-current telegraph system // Rea Wilton T. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.02 MB | Shaun Ewing | Oct 28, 1930 00:00 | US-1779492-A // Carrier-current telegraph system // Rea Wilton T. // American Telephone & Telegraph | ||||
| PDF File 1778407.pdf | 1001 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778407-A // Selective switch // Walters James N. ; Clark Edgar H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1001 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778407-A // Selective switch // Walters James N. ; Clark Edgar H. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 1778086.pdf | 367 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778086-A // Apparatus for pulling cables through conduits // Palm Samuel M. ; Snyder John F. // American Telephone And Telepho | |||
| Version 1 (current) | 367 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778086-A // Apparatus for pulling cables through conduits // Palm Samuel M. ; Snyder John F. // American Telephone And Telepho | ||||
| PDF File 1778085.pdf | 479 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778085-A // Distortionless amplifying system // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 479 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778085-A // Distortionless amplifying system // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1778077.pdf | 471 kB | Shaun Ewing | Oct 14, 1930 00:00 |
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US-1778077-A // Remote-control system // Holden William H. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Oct 14, 1930 00:00 | US-1778077-A // Remote-control system // Holden William H. T. // American Telephone & Telegraph | ||||
| PDF File 1777378.pdf | 178 kB | Shaun Ewing | Oct 07, 1930 00:00 |
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US-1777378-A // Photo-electric cell // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 178 kB | Shaun Ewing | Oct 07, 1930 00:00 | US-1777378-A // Photo-electric cell // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1777374.pdf | 370 kB | Shaun Ewing | Oct 07, 1930 00:00 |
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US-1777374-A // Wave antenna // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 370 kB | Shaun Ewing | Oct 07, 1930 00:00 | US-1777374-A // Wave antenna // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1777355.pdf | 705 kB | Shaun Ewing | Oct 07, 1930 00:00 |
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US-1777355-A // Transmission-level-controlling device // Fetter Charles H. // American Telephone & Telegraph | |||
| Version 1 (current) | 705 kB | Shaun Ewing | Oct 07, 1930 00:00 | US-1777355-A // Transmission-level-controlling device // Fetter Charles H. // American Telephone & Telegraph | ||||
| PDF File 1777016.pdf | 569 kB | Shaun Ewing | Sept 30, 1930 00:00 |
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US-1777016-A // Electrootical image-producing system // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Sept 30, 1930 00:00 | US-1777016-A // Electrootical image-producing system // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 1776822.pdf | 253 kB | Shaun Ewing | Sept 30, 1930 00:00 |
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US-1776822-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph | |||
| Version 1 (current) | 253 kB | Shaun Ewing | Sept 30, 1930 00:00 | US-1776822-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph | ||||
| PDF File 1776821.pdf | 513 kB | Shaun Ewing | Sept 30, 1930 00:00 |
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US-1776821-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph | |||
| Version 1 (current) | 513 kB | Shaun Ewing | Sept 30, 1930 00:00 | US-1776821-A // Automatic volume-control system // Strieby Maurice E. // American Telephone & Telegraph |
