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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1528011.pdf | 593 kB | Shaun Ewing | Mar 03, 1925 00:00 |
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US-1528011-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | |||
| Version 1 (current) | 593 kB | Shaun Ewing | Mar 03, 1925 00:00 | US-1528011-A // Radio signaling system // Demarest Charles S. ; Almquist Milton L. // American Telephone & Telegraph | ||||
| PDF File 1528907.pdf | 670 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528907-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | |||
| Version 1 (current) | 670 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528907-A // Trunking system // Bascom Henry M. // American Telephone & Telegraph | ||||
| PDF File 1528920.pdf | 677 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528920-A // Trunking system // Foster Ronald M. // American Telephone & Telegraph | |||
| Version 1 (current) | 677 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528920-A // Trunking system // Foster Ronald M. // American Telephone & Telegraph | ||||
| PDF File 1528982.pdf | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 |
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US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | |||
| Version 1 (current) | 812 kB | Shaun Ewing | Mar 10, 1925 00:00 | US-1528982-A // Trunking system // Molina Edward C. // American Telephone & Telegraph | ||||
| PDF File 1529786.pdf | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 |
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US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | |||
| Version 1 (current) | 309 kB | Shaun Ewing | Mar 17, 1925 00:00 | US-1529786-A // Secret communication system // Harper Alfred U. // American Telephone & Telegraph | ||||
| PDF File 1529801.pdf | 483 kB | Shaun Ewing | Mar 17, 1925 00:00 |
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US-1529801-A // Multiplex submarine cable // Martin William H. // American Telephone & Telegraph | |||
| Version 1 (current) | 483 kB | Shaun Ewing | Mar 17, 1925 00:00 | US-1529801-A // Multiplex submarine cable // Martin William H. // American Telephone & Telegraph | ||||
| PDF File 1530537.pdf | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 |
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US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Mar 24, 1925 00:00 | US-1530537-A // Electrical transposition system // Affel Herman A. // American Telephone & Telegraph | ||||
| PDF File 1530548.pdf | 473 kB | Shaun Ewing | Mar 24, 1925 00:00 |
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US-1530548-A // Signaling // Espenschied Lloyd // American Telephone & Telegraph | |||
| Version 1 (current) | 473 kB | Shaun Ewing | Mar 24, 1925 00:00 | US-1530548-A // Signaling // Espenschied Lloyd // American Telephone & Telegraph | ||||
| PDF File 1531347.pdf | 211 kB | Shaun Ewing | Mar 31, 1925 00:00 |
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US-1531347-A // Relay // Rhodes William A. // American Telephone & Telegraph | |||
| Version 1 (current) | 211 kB | Shaun Ewing | Mar 31, 1925 00:00 | US-1531347-A // Relay // Rhodes William A. // American Telephone & Telegraph | ||||
| PDF File 1531360.pdf | 1.44 MB | Shaun Ewing | Mar 31, 1925 00:00 |
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US-1531360-A // Telephone system // Toomey John F. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.44 MB | Shaun Ewing | Mar 31, 1925 00:00 | US-1531360-A // Telephone system // Toomey John F. // American Telephone & Telegraph | ||||
| PDF File 1532169.pdf | 581 kB | Shaun Ewing | Apr 07, 1925 00:00 |
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US-1532169-A // Method of and means for measuring transmission // Best Fred H. // American Telephone & Telegraph | |||
| Version 1 (current) | 581 kB | Shaun Ewing | Apr 07, 1925 00:00 | US-1532169-A // Method of and means for measuring transmission // Best Fred H. // American Telephone & Telegraph | ||||
| PDF File 1532172.pdf | 266 kB | Shaun Ewing | Apr 07, 1925 00:00 |
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US-1532172-A // Means for receiving weak signal currents // Carson John R. // American Telephone & Telegraph | |||
| Version 1 (current) | 266 kB | Shaun Ewing | Apr 07, 1925 00:00 | US-1532172-A // Means for receiving weak signal currents // Carson John R. // American Telephone & Telegraph | ||||
| PDF File 1533091.pdf | 726 kB | Shaun Ewing | Apr 14, 1925 00:00 |
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US-1533091-A // Duplex signaling system // Blackwell Otto B. // American Telephone & Telegraph | |||
| Version 1 (current) | 726 kB | Shaun Ewing | Apr 14, 1925 00:00 | US-1533091-A // Duplex signaling system // Blackwell Otto B. // American Telephone & Telegraph | ||||
| PDF File 1533105.pdf | 256 kB | Shaun Ewing | Apr 14, 1925 00:00 |
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US-1533105-A // Electric signaling // Eggers Henry C. T. // American Telephone & Telegraph | |||
| Version 1 (current) | 256 kB | Shaun Ewing | Apr 14, 1925 00:00 | US-1533105-A // Electric signaling // Eggers Henry C. T. // American Telephone & Telegraph | ||||
| PDF File 1534074.pdf | 341 kB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534074-A // Telegraphy // Parker Ralzemond D. // American Telephone And Telepgr | |||
| Version 1 (current) | 341 kB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534074-A // Telegraphy // Parker Ralzemond D. // American Telephone And Telepgr | ||||
| PDF File 1534118.pdf | 649 kB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534118-A // Method of adjusting balance between electrical conductors or networks // Hitchcock Harry W. // American Telephone & Telegraph | |||
| Version 1 (current) | 649 kB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534118-A // Method of adjusting balance between electrical conductors or networks // Hitchcock Harry W. // American Telephone & Telegraph | ||||
| PDF File 1534660.pdf | 856 kB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534660-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 856 kB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534660-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1534661.pdf | 1.17 MB | Shaun Ewing | Apr 21, 1925 00:00 |
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US-1534661-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Apr 21, 1925 00:00 | US-1534661-A // System of telegraphic distribution // Potts Louis M. // American Telephone & Telegraph | ||||
| PDF File 1535104.pdf | 446 kB | Shaun Ewing | Apr 28, 1925 00:00 |
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US-1535104-A // Means for preventing electrical interference // Cory Samuel I. // American Telephone & Telegraph | |||
| Version 1 (current) | 446 kB | Shaun Ewing | Apr 28, 1925 00:00 | US-1535104-A // Means for preventing electrical interference // Cory Samuel I. // American Telephone & Telegraph | ||||
| PDF File 1535244.pdf | 576 kB | Shaun Ewing | Apr 28, 1925 00:00 |
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US-1535244-A // Telegraphy // Percival Harry S. // American Telephone & Telegraph | |||
| Version 1 (current) | 576 kB | Shaun Ewing | Apr 28, 1925 00:00 | US-1535244-A // Telegraphy // Percival Harry S. // American Telephone & Telegraph |
