Unable to load page tree. It seems that you do not have permission to view the root page.
Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1282257.pdf | 7.18 MB | Shaun Ewing | Oct 22, 1918 00:00 |
|
US-1282257-A // Telephone exchange system. // Talbot C. Martin // Automatic Electric Co | |||
| Version 1 (current) | 7.18 MB | Shaun Ewing | Oct 22, 1918 00:00 | US-1282257-A // Telephone exchange system. // Talbot C. Martin // Automatic Electric Co | ||||
| PDF File 1254012.pdf | 6.32 MB | Shaun Ewing | Jan 15, 1918 00:00 |
|
US-1254012-A // Semi-automatic telephone system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 6.32 MB | Shaun Ewing | Jan 15, 1918 00:00 | US-1254012-A // Semi-automatic telephone system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1270277.pdf | 5.79 MB | Shaun Ewing | Jun 25, 1918 00:00 |
|
US-1270277-A // Two-wire automatic and manual telephone-exchange trunking system. // Edward D. Fales // Automatic Electric Co | |||
| Version 1 (current) | 5.79 MB | Shaun Ewing | Jun 25, 1918 00:00 | US-1270277-A // Two-wire automatic and manual telephone-exchange trunking system. // Edward D. Fales // Automatic Electric Co | ||||
| PDF File 1297251.pdf | 5.62 MB | Shaun Ewing | Mar 11, 1919 00:00 |
|
US-1297251-A // Telephone system. // Homer J. Roberts // Automatic Electric Co | |||
| Version 1 (current) | 5.62 MB | Shaun Ewing | Mar 11, 1919 00:00 | US-1297251-A // Telephone system. // Homer J. Roberts // Automatic Electric Co | ||||
| PDF File 1290837.pdf | 5.47 MB | Shaun Ewing | Jan 07, 1919 00:00 |
|
US-1290837-A // Telephone system. // Alexander E. Keith // Automatic Electric Co | |||
| Version 1 (current) | 5.47 MB | Shaun Ewing | Jan 07, 1919 00:00 | US-1290837-A // Telephone system. // Alexander E. Keith // Automatic Electric Co | ||||
| PDF File 1223506.pdf | 5.18 MB | Shaun Ewing | Apr 24, 1917 00:00 |
|
US-1223506-A // Common-battery automatic telephone system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 5.18 MB | Shaun Ewing | Apr 24, 1917 00:00 | US-1223506-A // Common-battery automatic telephone system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1227474.pdf | 4.74 MB | Shaun Ewing | May 22, 1917 00:00 |
|
US-1227474-A // Telephone system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 4.74 MB | Shaun Ewing | May 22, 1917 00:00 | US-1227474-A // Telephone system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1214686.pdf | 4.68 MB | Shaun Ewing | Feb 06, 1917 00:00 |
|
US-1214686-A // Supervisory system. // Alexander E. Keith // Automatic Electric Co | |||
| Version 1 (current) | 4.68 MB | Shaun Ewing | Feb 06, 1917 00:00 | US-1214686-A // Supervisory system. // Alexander E. Keith // Automatic Electric Co | ||||
| PDF File 1216365.pdf | 4.48 MB | Shaun Ewing | Feb 20, 1917 00:00 |
|
US-1216365-A // Automatic telephone system. // Clarence E. Rogers // Automatic Electric Co | |||
| Version 1 (current) | 4.48 MB | Shaun Ewing | Feb 20, 1917 00:00 | US-1216365-A // Automatic telephone system. // Clarence E. Rogers // Automatic Electric Co | ||||
| PDF File 1283413.pdf | 4.44 MB | Shaun Ewing | Oct 29, 1918 00:00 |
|
US-1283413-A // Telephone-exchange system. // Alexander E. Keith // Automatic Electric Co | |||
| Version 1 (current) | 4.44 MB | Shaun Ewing | Oct 29, 1918 00:00 | US-1283413-A // Telephone-exchange system. // Alexander E. Keith // Automatic Electric Co | ||||
| PDF File 1291990.pdf | 4.40 MB | Shaun Ewing | Jan 21, 1919 00:00 |
|
US-1291990-A // Two-wire rotary-connector telephone system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 4.40 MB | Shaun Ewing | Jan 21, 1919 00:00 | US-1291990-A // Two-wire rotary-connector telephone system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1289504.pdf | 4.29 MB | Shaun Ewing | Dec 31, 1918 00:00 |
|
US-1289504-A // Automatic telephone trunking system. // Anders M. Malmberg // Automatic Electric Co | |||
| Version 1 (current) | 4.29 MB | Shaun Ewing | Dec 31, 1918 00:00 | US-1289504-A // Automatic telephone trunking system. // Anders M. Malmberg // Automatic Electric Co | ||||
| PDF File 1263010.pdf | 4.21 MB | Shaun Ewing | Apr 16, 1918 00:00 |
|
US-1263010-A // Semi-automatic telephone system. // Bernard D. Willis // Automatic Electric Co | |||
| Version 1 (current) | 4.21 MB | Shaun Ewing | Apr 16, 1918 00:00 | US-1263010-A // Semi-automatic telephone system. // Bernard D. Willis // Automatic Electric Co | ||||
| PDF File 1291585.pdf | 4.04 MB | Shaun Ewing | Jan 14, 1919 00:00 |
|
US-1291585-A // Telephone trunking system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 4.04 MB | Shaun Ewing | Jan 14, 1919 00:00 | US-1291585-A // Telephone trunking system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1289853.pdf | 3.92 MB | Shaun Ewing | Dec 31, 1918 00:00 |
|
US-1289853-A // Automatic telephone system. // Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 3.92 MB | Shaun Ewing | Dec 31, 1918 00:00 | US-1289853-A // Automatic telephone system. // Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 1295181.pdf | 3.90 MB | Shaun Ewing | Feb 25, 1919 00:00 |
|
US-1295181-A // Telephone-exchange system. // Fritz Lubberger // Automatic Electric Co | |||
| Version 1 (current) | 3.90 MB | Shaun Ewing | Feb 25, 1919 00:00 | US-1295181-A // Telephone-exchange system. // Fritz Lubberger // Automatic Electric Co | ||||
| PDF File 1267743.pdf | 3.89 MB | Shaun Ewing | May 28, 1918 00:00 |
|
US-1267743-A // Telephone system. // Wilson L. Campbell // Automatic Electric Co | |||
| Version 1 (current) | 3.89 MB | Shaun Ewing | May 28, 1918 00:00 | US-1267743-A // Telephone system. // Wilson L. Campbell // Automatic Electric Co | ||||
| PDF File 1301647.pdf | 3.85 MB | Shaun Ewing | Apr 22, 1919 00:00 |
|
US-1301647-A // Telephone system. // Wilson L. Campbell ; Talbot G. Martin // Automatic Electric Co | |||
| Version 1 (current) | 3.85 MB | Shaun Ewing | Apr 22, 1919 00:00 | US-1301647-A // Telephone system. // Wilson L. Campbell ; Talbot G. Martin // Automatic Electric Co | ||||
| PDF File 815176.pdf | 3.75 MB | Shaun Ewing | Mar 13, 1906 00:00 |
|
US-815176-A // Automatic telephone connector-switch. // Alexander E. Keith ; John Erickson ; Charles J. Erickson // Automatic Electric Co | |||
| Version 1 (current) | 3.75 MB | Shaun Ewing | Mar 13, 1906 00:00 | US-815176-A // Automatic telephone connector-switch. // Alexander E. Keith ; John Erickson ; Charles J. Erickson // Automatic Electric Co | ||||
| PDF File 1275142.pdf | 3.68 MB | Shaun Ewing | Aug 06, 1918 00:00 |
|
US-1275142-A // Telephone-exchange apparatus and system // John Erickson // Automatic Electric Co | |||
| Version 1 (current) | 3.68 MB | Shaun Ewing | Aug 06, 1918 00:00 | US-1275142-A // Telephone-exchange apparatus and system // John Erickson // Automatic Electric Co |
