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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2121282.pdf | 553 kB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121282-A // Combined telephone and fire alarm system // Bradford Raymond Carter // American Telephone & Telegraph | |||
| Version 1 (current) | 553 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121282-A // Combined telephone and fire alarm system // Bradford Raymond Carter // American Telephone & Telegraph | ||||
| PDF File 2121287.pdf | 223 kB | Shaun Ewing | Jun 21, 1938 00:00 |
|
US-2121287-A // Composite set // Cowan Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 223 kB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121287-A // Composite set // Cowan Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 2121498.pdf | 2.83 MB | Shaun Ewing | Jun 21, 1938 00:00 |
|
US-2121498-A // Call distributing telephone system // Dunning Sanford F. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.83 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121498-A // Call distributing telephone system // Dunning Sanford F. // American Telephone & Telegraph | ||||
| PDF File 2121916.pdf | 275 kB | Shaun Ewing | Jun 28, 1938 00:00 |
|
US-2121916-A // Combined guide and guard for wires // Jacobsen Morris Hendrick Lindon // American Telephone & Telegraph | |||
| Version 1 (current) | 275 kB | Shaun Ewing | Jun 28, 1938 00:00 | US-2121916-A // Combined guide and guard for wires // Jacobsen Morris Hendrick Lindon // American Telephone & Telegraph | ||||
| PDF File 2121935.pdf | 503 kB | Shaun Ewing | Jun 28, 1938 00:00 |
|
US-2121935-A // Amplifying system // Swart Leland Kasson // American Telephone & Telegraph | |||
| Version 1 (current) | 503 kB | Shaun Ewing | Jun 28, 1938 00:00 | US-2121935-A // Amplifying system // Swart Leland Kasson // American Telephone & Telegraph | ||||
| PDF File 2122538.pdf | 697 kB | Shaun Ewing | Jul 05, 1938 00:00 |
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US-2122538-A // Wave amplifier // Potter Ralph K. // American Telephone & Telegraph | |||
| Version 1 (current) | 697 kB | Shaun Ewing | Jul 05, 1938 00:00 | US-2122538-A // Wave amplifier // Potter Ralph K. // American Telephone & Telegraph | ||||
| PDF File 2123874.pdf | 279 kB | Shaun Ewing | Jul 19, 1938 00:00 |
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US-2123874-A // Crystal oscillator receiving system // Bailey Austin // American Telephone & Telegraph | |||
| Version 1 (current) | 279 kB | Shaun Ewing | Jul 19, 1938 00:00 | US-2123874-A // Crystal oscillator receiving system // Bailey Austin // American Telephone & Telegraph | ||||
| PDF File 2124599.pdf | 1.38 MB | Shaun Ewing | Jul 26, 1938 00:00 |
|
US-2124599-A // Electrical network system // Wiener Norbert ; Lee Yuk-Wing // American Telephone & Telegraph | |||
| Version 1 (current) | 1.38 MB | Shaun Ewing | Jul 26, 1938 00:00 | US-2124599-A // Electrical network system // Wiener Norbert ; Lee Yuk-Wing // American Telephone & Telegraph | ||||
| PDF File 2126535.pdf | 589 kB | Shaun Ewing | Aug 09, 1938 00:00 |
|
US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 589 kB | Shaun Ewing | Aug 09, 1938 00:00 | US-2126535-A // Teletypewriter system // Corwin Thomas L. ; Swezey Burdette S. ; Watson Edward F. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 2126538.pdf | 647 kB | Shaun Ewing | Aug 09, 1938 00:00 |
|
US-2126538-A // Carbon sheet and loose form holder // Dencklau Karl R. // American Telephone & Telegraph | |||
| Version 1 (current) | 647 kB | Shaun Ewing | Aug 09, 1938 00:00 | US-2126538-A // Carbon sheet and loose form holder // Dencklau Karl R. // American Telephone & Telegraph | ||||
| PDF File 2128257.pdf | 904 kB | Shaun Ewing | Aug 30, 1938 00:00 |
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US-2128257-A // Electrical network system // Lee Yuk-Wing ; Wiener Norbert // American Telephone & Telegraph | |||
| Version 1 (current) | 904 kB | Shaun Ewing | Aug 30, 1938 00:00 | US-2128257-A // Electrical network system // Lee Yuk-Wing ; Wiener Norbert // American Telephone & Telegraph | ||||
| PDF File 2129711.pdf | 2.80 MB | Shaun Ewing | Sept 13, 1938 00:00 |
|
US-2129711-A // Guided transmission of ultra high frequency waves // Southworth George Clark // American Telephone & Telegraph | |||
| Version 1 (current) | 2.80 MB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129711-A // Guided transmission of ultra high frequency waves // Southworth George Clark // American Telephone & Telegraph | ||||
| PDF File 2129712.pdf | 2.48 MB | Shaun Ewing | Sept 13, 1938 00:00 |
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US-2129712-A // Transmission of energy effects by guided electric waves in a dielectric medium // Southworth George C. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.48 MB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129712-A // Transmission of energy effects by guided electric waves in a dielectric medium // Southworth George C. // American Telephone & Telegraph | ||||
| PDF File 2129714.pdf | 1017 kB | Shaun Ewing | Sept 13, 1938 00:00 |
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US-2129714-A // Wave type converter for use with dielectric guides // Southworth George C. // American Telephone & Telegraph | |||
| Version 1 (current) | 1017 kB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129714-A // Wave type converter for use with dielectric guides // Southworth George C. // American Telephone & Telegraph | ||||
| PDF File 2129823.pdf | 654 kB | Shaun Ewing | Sept 13, 1938 00:00 |
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US-2129823-A // Distortion indicating and measuring device // Cowan Frank Augustus // American Telephone & Telegraph | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129823-A // Distortion indicating and measuring device // Cowan Frank Augustus // American Telephone & Telegraph | ||||
| PDF File 2129876.pdf | 213 kB | Shaun Ewing | Sept 13, 1938 00:00 |
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US-2129876-A // Card holder // Rumbold William Nightingale // American Telephone & Telegraph | |||
| Version 1 (current) | 213 kB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129876-A // Card holder // Rumbold William Nightingale // American Telephone & Telegraph | ||||
| PDF File 2130464.pdf | 255 kB | Shaun Ewing | Sept 20, 1938 00:00 |
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US-2130464-A // Means for shifting strands and cables on poles // Jacobsen Morris Hendrick Lindon // American Telephone & Telegraph | |||
| Version 1 (current) | 255 kB | Shaun Ewing | Sept 20, 1938 00:00 | US-2130464-A // Means for shifting strands and cables on poles // Jacobsen Morris Hendrick Lindon // American Telephone & Telegraph | ||||
| PDF File 2132180.pdf | 821 kB | Shaun Ewing | Oct 04, 1938 00:00 |
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US-2132180-A // Two-way signaling system // Mitchell Doren // American Telephone & Telegraph | |||
| Version 1 (current) | 821 kB | Shaun Ewing | Oct 04, 1938 00:00 | US-2132180-A // Two-way signaling system // Mitchell Doren // American Telephone & Telegraph | ||||
| PDF File 2132678.pdf | 1.28 MB | Shaun Ewing | Oct 11, 1938 00:00 |
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US-2132678-A // Signal distortion measuring device // Cowan Frank A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.28 MB | Shaun Ewing | Oct 11, 1938 00:00 | US-2132678-A // Signal distortion measuring device // Cowan Frank A. // American Telephone & Telegraph | ||||
| PDF File 2132684.pdf | 2.25 MB | Shaun Ewing | Oct 11, 1938 00:00 |
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US-2132684-A // Printing telegraph automatic exchange system // Gardner Leland A. // American Telephone & Telegraph | |||
| Version 1 (current) | 2.25 MB | Shaun Ewing | Oct 11, 1938 00:00 | US-2132684-A // Printing telegraph automatic exchange system // Gardner Leland A. // American Telephone & Telegraph |
