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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1622297.pdf | 554 kB | Shaun Ewing | Mar 29, 1927 00:00 |
|
US-1622297-A // Radio printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Mar 29, 1927 00:00 | US-1622297-A // Radio printing-telegraph system // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1691986.pdf | 554 kB | Shaun Ewing | Nov 20, 1928 00:00 |
|
US-1691986-A // Apparatus and method for generating pure sine waves of electromotive force // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Nov 20, 1928 00:00 | US-1691986-A // Apparatus and method for generating pure sine waves of electromotive force // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1755243.pdf | 554 kB | Shaun Ewing | Apr 22, 1930 00:00 |
|
US-1755243-A // Signaling means for telephone systems // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 554 kB | Shaun Ewing | Apr 22, 1930 00:00 | US-1755243-A // Signaling means for telephone systems // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1414391.pdf | 553 kB | Shaun Ewing | May 02, 1922 00:00 |
|
US-1414391-A // Means for and method of testing unbalance // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | May 02, 1922 00:00 | US-1414391-A // Means for and method of testing unbalance // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1435328.pdf | 553 kB | Shaun Ewing | Nov 14, 1922 00:00 |
|
US-1435328-A // Distortion-measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Nov 14, 1922 00:00 | US-1435328-A // Distortion-measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1511326.pdf | 553 kB | Shaun Ewing | Oct 14, 1924 00:00 |
|
US-1511326-A // Duplex telegraphy // Fell John M. // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Oct 14, 1924 00:00 | US-1511326-A // Duplex telegraphy // Fell John M. // American Telephone & Telegraph | ||||
| PDF File 1674679.pdf | 552 kB | Shaun Ewing | Jun 26, 1928 00:00 |
|
US-1674679-A // Voice-operated echo suppressor // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jun 26, 1928 00:00 | US-1674679-A // Voice-operated echo suppressor // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1568861.pdf | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568861-A // Repeater circuit // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568861-A // Repeater circuit // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1568143.pdf | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 |
|
US-1568143-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 552 kB | Shaun Ewing | Jan 05, 1926 00:00 | US-1568143-A // Frequency selective circuits // Elsasser Henry W. // American Telephone & Telegraph | ||||
| PDF File 1784176.pdf | 551 kB | Shaun Ewing | Dec 09, 1930 00:00 |
|
US-1784176-A // Equalization for carrier systems // Carpe Allen // American Telephone & Telegraph | |||
| Version 1 (current) | 551 kB | Shaun Ewing | Dec 09, 1930 00:00 | US-1784176-A // Equalization for carrier systems // Carpe Allen // American Telephone & Telegraph | ||||
| PDF File 1572785.pdf | 550 kB | Shaun Ewing | Feb 09, 1926 00:00 |
|
US-1572785-A // Telegraph circuit // Fox Francis H. // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Feb 09, 1926 00:00 | US-1572785-A // Telegraph circuit // Fox Francis H. // American Telephone & Telegraph | ||||
| PDF File 1738536.pdf | 550 kB | Shaun Ewing | Dec 10, 1929 00:00 |
|
US-1738536-A // Echo suppressor // Mitchell Doren ; Silent Harold C. // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Dec 10, 1929 00:00 | US-1738536-A // Echo suppressor // Mitchell Doren ; Silent Harold C. // American Telephone & Telegraph | ||||
| PDF File 1648058.pdf | 550 kB | Shaun Ewing | Nov 08, 1927 00:00 |
|
US-1648058-A // Electrovision // Parker Ralzemond D. // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Nov 08, 1927 00:00 | US-1648058-A // Electrovision // Parker Ralzemond D. // American Telephone & Telegraph | ||||
| PDF File 1467458.pdf | 550 kB | Shaun Ewing | Sept 11, 1923 00:00 |
|
US-1467458-A // Signaling circuits // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 550 kB | Shaun Ewing | Sept 11, 1923 00:00 | US-1467458-A // Signaling circuits // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1419673.pdf | 549 kB | Shaun Ewing | Jun 13, 1922 00:00 |
|
US-1419673-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Jun 13, 1922 00:00 | US-1419673-A // Electrical measuring apparatus // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1564259.pdf | 549 kB | Shaun Ewing | Dec 08, 1925 00:00 |
|
US-1564259-A // Electrical testing system // Mccurdy Ralph G. // American Telephone & Telegraph | |||
| Version 1 (current) | 549 kB | Shaun Ewing | Dec 08, 1925 00:00 | US-1564259-A // Electrical testing system // Mccurdy Ralph G. // American Telephone & Telegraph | ||||
| PDF File 1667792.pdf | 549 kB | Shaun Ewing | May 01, 1928 00:00 |
|
US-1667792-A // Radio signaling system // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 549 kB | Shaun Ewing | May 01, 1928 00:00 | US-1667792-A // Radio signaling system // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1479846.pdf | 548 kB | Shaun Ewing | Jan 08, 1924 00:00 |
|
US-1479846-A // Ciphering device // Vernam Gilbert S. // American Telephone & Telegraph | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Jan 08, 1924 00:00 | US-1479846-A // Ciphering device // Vernam Gilbert S. // American Telephone & Telegraph | ||||
| PDF File 1548862.pdf | 547 kB | Shaun Ewing | Aug 11, 1925 00:00 |
|
US-1548862-A // Interference-neutralizing arrangement // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 547 kB | Shaun Ewing | Aug 11, 1925 00:00 | US-1548862-A // Interference-neutralizing arrangement // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1655420.pdf | 546 kB | Shaun Ewing | Jan 10, 1928 00:00 |
|
US-1655420-A // Intermediate telegraph station // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 546 kB | Shaun Ewing | Jan 10, 1928 00:00 | US-1655420-A // Intermediate telegraph station // Herman Joseph // American Telephone & Telegraph |
