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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1960350.pdf | 667 kB | Shaun Ewing | May 29, 1934 00:00 |
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US-1960350-A // Automatic balancing arrangement // Shackloton Samuel Paul ; Edwards Paul Griffith // American Telephone & Telegraph | |||
| Version 1 (current) | 667 kB | Shaun Ewing | May 29, 1934 00:00 | US-1960350-A // Automatic balancing arrangement // Shackloton Samuel Paul ; Edwards Paul Griffith // American Telephone & Telegraph | ||||
| PDF File 1959494.pdf | 778 kB | Shaun Ewing | May 22, 1934 00:00 |
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US-1959494-A // System for voltage transformation of currents of wide frequency range // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 778 kB | Shaun Ewing | May 22, 1934 00:00 | US-1959494-A // System for voltage transformation of currents of wide frequency range // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1959459.pdf | 276 kB | Shaun Ewing | May 22, 1934 00:00 |
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US-1959459-A // Frequency changing system // Cowan Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 276 kB | Shaun Ewing | May 22, 1934 00:00 | US-1959459-A // Frequency changing system // Cowan Frank A. // American Telephone & Telegraph | ||||
| PDF File 1958930.pdf | 2.19 MB | Shaun Ewing | May 15, 1934 00:00 |
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US-1958930-A // Automatic switching telegraph private branch exchange system // Singer Fred J. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.19 MB | Shaun Ewing | May 15, 1934 00:00 | US-1958930-A // Automatic switching telegraph private branch exchange system // Singer Fred J. // American Telephone & Telegraph | ||||
| PDF File 1958523.pdf | 365 kB | Shaun Ewing | May 15, 1934 00:00 |
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US-1958523-A // Bias control in telegraph communication // Rea Wilton Treat // American Telephone & Telegraph | |||
| Version 1 (current) | 365 kB | Shaun Ewing | May 15, 1934 00:00 | US-1958523-A // Bias control in telegraph communication // Rea Wilton Treat // American Telephone & Telegraph | ||||
| PDF File 1958510.pdf | 343 kB | Shaun Ewing | May 15, 1934 00:00 |
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US-1958510-A // Monitoring circuit // Cowan Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 343 kB | Shaun Ewing | May 15, 1934 00:00 | US-1958510-A // Monitoring circuit // Cowan Frank A. // American Telephone & Telegraph | ||||
| PDF File 1957586.pdf | 192 kB | Shaun Ewing | May 08, 1934 00:00 |
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US-1957586-A // Lock // Gutman Louis // American Telephone & Telegraph | |||
| Version 1 (current) | 192 kB | Shaun Ewing | May 08, 1934 00:00 | US-1957586-A // Lock // Gutman Louis // American Telephone & Telegraph | ||||
| PDF File 1957571.pdf | 758 kB | Shaun Ewing | May 08, 1934 00:00 |
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US-1957571-A // Echo suppressor // Wright Sumner B. ; Abraham Leonard G. // American Telephone & Telegraph | |||
| Version 1 (current) | 758 kB | Shaun Ewing | May 08, 1934 00:00 | US-1957571-A // Echo suppressor // Wright Sumner B. ; Abraham Leonard G. // American Telephone & Telegraph | ||||
| PDF File 1956704.pdf | 758 kB | Shaun Ewing | May 01, 1934 00:00 |
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US-1956704-A // Regenerative signal repeater // Weaver Allan // American Telephone & Telegraph | |||
| Version 1 (current) | 758 kB | Shaun Ewing | May 01, 1934 00:00 | US-1956704-A // Regenerative signal repeater // Weaver Allan // American Telephone & Telegraph | ||||
| PDF File 1956670.pdf | 667 kB | Shaun Ewing | May 01, 1934 00:00 |
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US-1956670-A // Selective signaling system // Demarest Charles Sidney // American Telephone & Telegraph | |||
| Version 1 (current) | 667 kB | Shaun Ewing | May 01, 1934 00:00 | US-1956670-A // Selective signaling system // Demarest Charles Sidney // American Telephone & Telegraph | ||||
| PDF File 1955875.pdf | 642 kB | Shaun Ewing | Apr 24, 1934 00:00 |
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US-1955875-A // Signaling system // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 642 kB | Shaun Ewing | Apr 24, 1934 00:00 | US-1955875-A // Signaling system // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1955874.pdf | 354 kB | Shaun Ewing | Apr 24, 1934 00:00 |
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US-1955874-A // Means for controlling gas filled discharge tubes // Demarest Charles S. // American Telephone & Telegraph | |||
| Version 1 (current) | 354 kB | Shaun Ewing | Apr 24, 1934 00:00 | US-1955874-A // Means for controlling gas filled discharge tubes // Demarest Charles S. // American Telephone & Telegraph | ||||
| PDF File 1954932.pdf | 322 kB | Shaun Ewing | Apr 17, 1934 00:00 |
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US-1954932-A // Telephone and direct conversation circuits // Harris Walter L. // American Telephone & Telegraph | |||
| Version 1 (current) | 322 kB | Shaun Ewing | Apr 17, 1934 00:00 | US-1954932-A // Telephone and direct conversation circuits // Harris Walter L. // American Telephone & Telegraph | ||||
| PDF File 1954898.pdf | 814 kB | Shaun Ewing | Apr 17, 1934 00:00 |
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US-1954898-A // Radio receiving system // Stone John Stone // American Telephone & Telegraph | |||
| Version 1 (current) | 814 kB | Shaun Ewing | Apr 17, 1934 00:00 | US-1954898-A // Radio receiving system // Stone John Stone // American Telephone & Telegraph | ||||
| PDF File 1954067.pdf | 270 kB | Shaun Ewing | Apr 10, 1934 00:00 |
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US-1954067-A // Pad holder // Carlson Herbert Nels Richard // American Telephone & Telegraph | |||
| Version 1 (current) | 270 kB | Shaun Ewing | Apr 10, 1934 00:00 | US-1954067-A // Pad holder // Carlson Herbert Nels Richard // American Telephone & Telegraph | ||||
| PDF File 1954025.pdf | 422 kB | Shaun Ewing | Apr 10, 1934 00:00 |
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US-1954025-A // Electrooptical system // Reynolds Frederick W. // American Telephone & Telegraph | |||
| Version 1 (current) | 422 kB | Shaun Ewing | Apr 10, 1934 00:00 | US-1954025-A // Electrooptical system // Reynolds Frederick W. // American Telephone & Telegraph | ||||
| PDF File 1953157.pdf | 740 kB | Shaun Ewing | Apr 03, 1934 00:00 |
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US-1953157-A // Acoustic decremeter // Dietze Eginhard ; Jr. Walter D. Goodale, // American Telephone & Telegraph | |||
| Version 1 (current) | 740 kB | Shaun Ewing | Apr 03, 1934 00:00 | US-1953157-A // Acoustic decremeter // Dietze Eginhard ; Jr. Walter D. Goodale, // American Telephone & Telegraph | ||||
| PDF File 1953152.pdf | 712 kB | Shaun Ewing | Apr 03, 1934 00:00 |
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US-1953152-A // Signal transmitting system // Clark Alva B. // American Telephone & Telegraph | |||
| Version 1 (current) | 712 kB | Shaun Ewing | Apr 03, 1934 00:00 | US-1953152-A // Signal transmitting system // Clark Alva B. // American Telephone & Telegraph | ||||
| PDF File 1952524.pdf | 417 kB | Shaun Ewing | Mar 27, 1934 00:00 |
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US-1952524-A // Transmission regulator circuits // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 417 kB | Shaun Ewing | Mar 27, 1934 00:00 | US-1952524-A // Transmission regulator circuits // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1952280.pdf | 688 kB | Shaun Ewing | Mar 27, 1934 00:00 |
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US-1952280-A // Call recording system // Parker Ralzemond D. ; Swezey Burdette S. // American Telephone & Telegraph | |||
| Version 1 (current) | 688 kB | Shaun Ewing | Mar 27, 1934 00:00 | US-1952280-A // Call recording system // Parker Ralzemond D. ; Swezey Burdette S. // American Telephone & Telegraph |
