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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1513441.pdf | 399 kB | Shaun Ewing | Oct 28, 1924 00:00 |
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US-1513441-A // Half-duplex morse carrier system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 399 kB | Shaun Ewing | Oct 28, 1924 00:00 | US-1513441-A // Half-duplex morse carrier system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1513450.pdf | 588 kB | Shaun Ewing | Oct 28, 1924 00:00 |
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US-1513450-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 588 kB | Shaun Ewing | Oct 28, 1924 00:00 | US-1513450-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1513451.pdf | 488 kB | Shaun Ewing | Oct 28, 1924 00:00 |
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US-1513451-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 488 kB | Shaun Ewing | Oct 28, 1924 00:00 | US-1513451-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1513452.pdf | 611 kB | Shaun Ewing | Oct 28, 1924 00:00 |
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US-1513452-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Oct 28, 1924 00:00 | US-1513452-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1513453.pdf | 278 kB | Shaun Ewing | Oct 28, 1924 00:00 |
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US-1513453-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 278 kB | Shaun Ewing | Oct 28, 1924 00:00 | US-1513453-A // Half-duplex morse carrier system // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1513760.pdf | 457 kB | Shaun Ewing | Nov 04, 1924 00:00 |
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US-1513760-A // Foreign-potential-detecting device // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 457 kB | Shaun Ewing | Nov 04, 1924 00:00 | US-1513760-A // Foreign-potential-detecting device // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1514645.pdf | 1.25 MB | Shaun Ewing | Nov 11, 1924 00:00 |
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US-1514645-A // Private-branch-exchange circuits // Bailey Rand S. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.25 MB | Shaun Ewing | Nov 11, 1924 00:00 | US-1514645-A // Private-branch-exchange circuits // Bailey Rand S. // American Telephone & Telegraph | ||||
| PDF File 1514648.pdf | 566 kB | Shaun Ewing | Nov 11, 1924 00:00 |
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US-1514648-A // Directive radio system // Bown Ralph // American Telephone & Telegraph | |||
| Version 1 (current) | 566 kB | Shaun Ewing | Nov 11, 1924 00:00 | US-1514648-A // Directive radio system // Bown Ralph // American Telephone & Telegraph | ||||
| PDF File 1515660.pdf | 442 kB | Shaun Ewing | Nov 18, 1924 00:00 |
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US-1515660-A // Measuring instrument for vacuum tubes // Crisson George // American Telephone & Telegraph | |||
| Version 1 (current) | 442 kB | Shaun Ewing | Nov 18, 1924 00:00 | US-1515660-A // Measuring instrument for vacuum tubes // Crisson George // American Telephone & Telegraph | ||||
| PDF File 1517315.pdf | 1.70 MB | Shaun Ewing | Dec 02, 1924 00:00 |
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US-1517315-A // Telephone-exchange system // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.70 MB | Shaun Ewing | Dec 02, 1924 00:00 | US-1517315-A // Telephone-exchange system // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1518495.pdf | 805 kB | Shaun Ewing | Dec 09, 1924 00:00 |
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US-1518495-A // Selective circuits // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 805 kB | Shaun Ewing | Dec 09, 1924 00:00 | US-1518495-A // Selective circuits // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1518543.pdf | 571 kB | Shaun Ewing | Dec 09, 1924 00:00 |
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US-1518543-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 571 kB | Shaun Ewing | Dec 09, 1924 00:00 | US-1518543-A // Electrical measuring apparatus // Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1519202.pdf | 242 kB | Shaun Ewing | Dec 16, 1924 00:00 |
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US-1519202-A // Telegraph system // Herman Joseph // American Telephone & Telegraph | |||
| Version 1 (current) | 242 kB | Shaun Ewing | Dec 16, 1924 00:00 | US-1519202-A // Telegraph system // Herman Joseph // American Telephone & Telegraph | ||||
| PDF File 1519211.pdf | 182 kB | Shaun Ewing | Dec 16, 1924 00:00 |
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US-1519211-A // Loud-speaker circuits // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 182 kB | Shaun Ewing | Dec 16, 1924 00:00 | US-1519211-A // Loud-speaker circuits // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1519573.pdf | 612 kB | Shaun Ewing | Dec 16, 1924 00:00 |
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US-1519573-A // Voice-frequency signaling // Clark Alva B. ; Gannett Danforth K. ; Nyquist Harry // American Telephone & Telegraph | |||
| Version 1 (current) | 612 kB | Shaun Ewing | Dec 16, 1924 00:00 | US-1519573-A // Voice-frequency signaling // Clark Alva B. ; Gannett Danforth K. ; Nyquist Harry // American Telephone & Telegraph | ||||
| PDF File 1519574.pdf | 665 kB | Shaun Ewing | Dec 16, 1924 00:00 |
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US-1519574-A // Method of testing transmission lines // Clark Alva B. ; Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 665 kB | Shaun Ewing | Dec 16, 1924 00:00 | US-1519574-A // Method of testing transmission lines // Clark Alva B. ; Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1520097.pdf | 267 kB | Shaun Ewing | Dec 23, 1924 00:00 |
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US-1520097-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | |||
| Version 1 (current) | 267 kB | Shaun Ewing | Dec 23, 1924 00:00 | US-1520097-A // Selective signaling system // Thompson George K. // American Telephone & Telegraph | ||||
| PDF File 1520098.pdf | 389 kB | Shaun Ewing | Dec 23, 1924 00:00 |
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US-1520098-A // Signaling system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 389 kB | Shaun Ewing | Dec 23, 1924 00:00 | US-1520098-A // Signaling system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1520793.pdf | 266 kB | Shaun Ewing | Dec 30, 1924 00:00 |
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US-1520793-A // Current-regulating device // Young Rowland L. // American Telephone & Telegraph | |||
| Version 1 (current) | 266 kB | Shaun Ewing | Dec 30, 1924 00:00 | US-1520793-A // Current-regulating device // Young Rowland L. // American Telephone & Telegraph | ||||
| PDF File 1520813.pdf | 522 kB | Shaun Ewing | Dec 30, 1924 00:00 |
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US-1520813-A // Selective circuits for multiplex transmission // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 522 kB | Shaun Ewing | Dec 30, 1924 00:00 | US-1520813-A // Selective circuits for multiplex transmission // Espenschied Lloyd // American Telephone & Telegraph |
