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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1454158.pdf | 729 kB | Shaun Ewing | May 08, 1923 00:00 |
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US-1454158-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 729 kB | Shaun Ewing | May 08, 1923 00:00 | US-1454158-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1454159.pdf | 1022 kB | Shaun Ewing | May 08, 1923 00:00 |
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US-1454159-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 1022 kB | Shaun Ewing | May 08, 1923 00:00 | US-1454159-A // Means for ringing over multiplex transmission channels // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1454840.pdf | 1.09 MB | Shaun Ewing | May 15, 1923 00:00 |
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US-1454840-A // Means for ringing over multiplex transmission channels // Affel Herman A. // American Telephone And Telegrp | |||
| Version 1 (current) | 1.09 MB | Shaun Ewing | May 15, 1923 00:00 | US-1454840-A // Means for ringing over multiplex transmission channels // Affel Herman A. // American Telephone And Telegrp | ||||
| PDF File 1454895.pdf | 345 kB | Shaun Ewing | May 15, 1923 00:00 |
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US-1454895-A // Electrolysis mitigation // Jones George G. // American Telephone & Telegraph | |||
| Version 1 (current) | 345 kB | Shaun Ewing | May 15, 1923 00:00 | US-1454895-A // Electrolysis mitigation // Jones George G. // American Telephone & Telegraph | ||||
| PDF File 1455827.pdf | 412 kB | Shaun Ewing | May 22, 1923 00:00 |
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US-1455827-A // Selective circuit for multiplex transmission // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 412 kB | Shaun Ewing | May 22, 1923 00:00 | US-1455827-A // Selective circuit for multiplex transmission // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1455843.pdf | 272 kB | Shaun Ewing | May 22, 1923 00:00 |
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US-1455843-A // System for measuring distrotion // Kirkwood Maclean // American Telephone & Telegraph | |||
| Version 1 (current) | 272 kB | Shaun Ewing | May 22, 1923 00:00 | US-1455843-A // System for measuring distrotion // Kirkwood Maclean // American Telephone & Telegraph | ||||
| PDF File 1456549.pdf | 786 kB | Shaun Ewing | May 29, 1923 00:00 |
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US-1456549-A // Composite signaling circuits // Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 786 kB | Shaun Ewing | May 29, 1923 00:00 | US-1456549-A // Composite signaling circuits // Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1456556.pdf | 385 kB | Shaun Ewing | May 29, 1923 00:00 |
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US-1456556-A // Duplex telegraph system // Hudson Earl A. // American Telephone & Telegraph | |||
| Version 1 (current) | 385 kB | Shaun Ewing | May 29, 1923 00:00 | US-1456556-A // Duplex telegraph system // Hudson Earl A. // American Telephone & Telegraph | ||||
| PDF File 1457336.pdf | 623 kB | Shaun Ewing | Jun 05, 1923 00:00 |
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US-1457336-A // Balancing circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 623 kB | Shaun Ewing | Jun 05, 1923 00:00 | US-1457336-A // Balancing circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1457338.pdf | 449 kB | Shaun Ewing | Jun 05, 1923 00:00 |
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US-1457338-A // Selective connection of trunk lines // Barrows Leon D. ; Darrow Leo H. // American Telephone & Telegraph | |||
| Version 1 (current) | 449 kB | Shaun Ewing | Jun 05, 1923 00:00 | US-1457338-A // Selective connection of trunk lines // Barrows Leon D. ; Darrow Leo H. // American Telephone & Telegraph | ||||
| PDF File 1458193.pdf | 471 kB | Shaun Ewing | Jun 12, 1923 00:00 |
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US-1458193-A // Multiple balancing arrangement for multiplex transmission // Osborne Harold S. // American Telephone & Telegraph | |||
| Version 1 (current) | 471 kB | Shaun Ewing | Jun 12, 1923 00:00 | US-1458193-A // Multiple balancing arrangement for multiplex transmission // Osborne Harold S. // American Telephone & Telegraph | ||||
| PDF File 1458988.pdf | 408 kB | Shaun Ewing | Jun 19, 1923 00:00 |
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US-1458988-A // Means for equalizing transmission over lines of different electrical characteristics // Morehouse Lyman F. // American Telephone & Telegraph | |||
| Version 1 (current) | 408 kB | Shaun Ewing | Jun 19, 1923 00:00 | US-1458988-A // Means for equalizing transmission over lines of different electrical characteristics // Morehouse Lyman F. // American Telephone & Telegraph | ||||
| PDF File 1459003.pdf | 680 kB | Shaun Ewing | Jun 19, 1923 00:00 |
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US-1459003-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 680 kB | Shaun Ewing | Jun 19, 1923 00:00 | US-1459003-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1459004.pdf | 411 kB | Shaun Ewing | Jun 19, 1923 00:00 |
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US-1459004-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 411 kB | Shaun Ewing | Jun 19, 1923 00:00 | US-1459004-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1459005.pdf | 310 kB | Shaun Ewing | Jun 19, 1923 00:00 |
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US-1459005-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 310 kB | Shaun Ewing | Jun 19, 1923 00:00 | US-1459005-A // Means for equalizing transmission over lines of different electrical characteristics // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1459770.pdf | 424 kB | Shaun Ewing | Jun 26, 1923 00:00 |
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US-1459770-A // System for testing line balance // Jones Alva J. // American Telephone & Telegraph | |||
| Version 1 (current) | 424 kB | Shaun Ewing | Jun 26, 1923 00:00 | US-1459770-A // System for testing line balance // Jones Alva J. // American Telephone & Telegraph | ||||
| PDF File 1461064.pdf | 949 kB | Shaun Ewing | Jul 10, 1923 00:00 |
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US-1461064-A // Multiplex transmission circuit // Martin De Loss K. // American Telephone & Telegraph | |||
| Version 1 (current) | 949 kB | Shaun Ewing | Jul 10, 1923 00:00 | US-1461064-A // Multiplex transmission circuit // Martin De Loss K. // American Telephone & Telegraph | ||||
| PDF File 1461492.pdf | 447 kB | Shaun Ewing | Jul 10, 1923 00:00 |
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US-1461492-A // Electrical testing instrument // Moody John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 447 kB | Shaun Ewing | Jul 10, 1923 00:00 | US-1461492-A // Electrical testing instrument // Moody John F. // American Telephone & Telegraph | ||||
| PDF File 1461783.pdf | 677 kB | Shaun Ewing | Jul 17, 1923 00:00 |
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US-1461783-A // Secret-communication system // Parker Ralzemond D. ; Hamilton Baxter P. // American Telephone & Telegraph | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Jul 17, 1923 00:00 | US-1461783-A // Secret-communication system // Parker Ralzemond D. ; Hamilton Baxter P. // American Telephone & Telegraph | ||||
| PDF File 1461790.pdf | 414 kB | Shaun Ewing | Jul 17, 1923 00:00 |
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US-1461790-A // Maximum-voltage indicator // Sultzer Morton // American Telephone & Telegraph | |||
| Version 1 (current) | 414 kB | Shaun Ewing | Jul 17, 1923 00:00 | US-1461790-A // Maximum-voltage indicator // Sultzer Morton // American Telephone & Telegraph |
