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 1235302.pdf | 4.19 MB | Shaun Ewing | Jul 31, 1917 00:00 |
|
US-1235302-A // Telephone system. // Thomas H. Ferguson // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.19 MB | Shaun Ewing | Jul 31, 1917 00:00 | US-1235302-A // Telephone system. // Thomas H. Ferguson // Kellogg Switchboard & Supply | ||||
| PDF File 1233651.pdf | 888 kB | Shaun Ewing | Jul 17, 1917 00:00 |
|
US-1233651-A // Electrical signaling-horn. // William W. Dean // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 888 kB | Shaun Ewing | Jul 17, 1917 00:00 | US-1233651-A // Electrical signaling-horn. // William W. Dean // Kellogg Switchboard & Supply | ||||
| PDF File 1233196.pdf | 1.74 MB | Shaun Ewing | Jul 10, 1917 00:00 |
|
US-1233196-A // Automatic ringing and secret-service telephone system. // Hiram D. Currier // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.74 MB | Shaun Ewing | Jul 10, 1917 00:00 | US-1233196-A // Automatic ringing and secret-service telephone system. // Hiram D. Currier // Kellogg Switchboard & Supply | ||||
| PDF File 1232044.pdf | 355 kB | Shaun Ewing | Jul 03, 1917 00:00 |
|
US-1232044-A // Ringing-relay. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 355 kB | Shaun Ewing | Jul 03, 1917 00:00 | US-1232044-A // Ringing-relay. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1231319.pdf | 1.81 MB | Shaun Ewing | Jun 26, 1917 00:00 |
|
US-1231319-A // Automatic telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.81 MB | Shaun Ewing | Jun 26, 1917 00:00 | US-1231319-A // Automatic telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 1230410.pdf | 778 kB | Shaun Ewing | Jun 19, 1917 00:00 |
|
US-1230410-A // Operator's key. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 778 kB | Shaun Ewing | Jun 19, 1917 00:00 | US-1230410-A // Operator's key. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1229165.pdf | 2.98 MB | Shaun Ewing | Jun 05, 1917 00:00 |
|
US-1229165-A // Telephone-exchange system. // Harold D. Stroud // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.98 MB | Shaun Ewing | Jun 05, 1917 00:00 | US-1229165-A // Telephone-exchange system. // Harold D. Stroud // Kellogg Switchboard & Supply | ||||
| PDF File 1228778.pdf | 322 kB | Shaun Ewing | Jun 05, 1917 00:00 |
|
US-1228778-A // Knife-switch relay. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 322 kB | Shaun Ewing | Jun 05, 1917 00:00 | US-1228778-A // Knife-switch relay. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1227070.pdf | 448 kB | Shaun Ewing | May 22, 1917 00:00 |
|
US-1227070-A // Lamp-controlled circuits. // William Reid // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 448 kB | Shaun Ewing | May 22, 1917 00:00 | US-1227070-A // Lamp-controlled circuits. // William Reid // Kellogg Switchboard & Supply | ||||
| PDF File 1226157.pdf | 577 kB | Shaun Ewing | May 15, 1917 00:00 |
|
US-1226157-A // Combined telephone and signaling system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 577 kB | Shaun Ewing | May 15, 1917 00:00 | US-1226157-A // Combined telephone and signaling system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 1224517.pdf | 785 kB | Shaun Ewing | May 01, 1917 00:00 |
|
US-1224517-A // Switching device. // Alfred H. Weiss // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 785 kB | Shaun Ewing | May 01, 1917 00:00 | US-1224517-A // Switching device. // Alfred H. Weiss // Kellogg Switchboard & Supply | ||||
| PDF File 1223778.pdf | 440 kB | Shaun Ewing | Apr 24, 1917 00:00 |
|
US-1223778-A // Controlling mechanism for clock-movements. // Lawrence Ericson // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 440 kB | Shaun Ewing | Apr 24, 1917 00:00 | US-1223778-A // Controlling mechanism for clock-movements. // Lawrence Ericson // Kellogg Switchboard & Supply | ||||
| PDF File 1223349.pdf | 9.27 MB | Shaun Ewing | Apr 17, 1917 00:00 |
|
US-1223349-A // Telephone system. // Francis W. Dunbar // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 9.27 MB | Shaun Ewing | Apr 17, 1917 00:00 | US-1223349-A // Telephone system. // Francis W. Dunbar // Kellogg Switchboard & Supply | ||||
| PDF File 1221030.pdf | 1.21 MB | Shaun Ewing | Apr 03, 1917 00:00 |
|
US-1221030-A // Telephone system. // Hiram D. Currier // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.21 MB | Shaun Ewing | Apr 03, 1917 00:00 | US-1221030-A // Telephone system. // Hiram D. Currier // Kellogg Switchboard & Supply | ||||
| PDF File 1219949.pdf | 469 kB | Shaun Ewing | Mar 20, 1917 00:00 |
|
US-1219949-A // Electromagnetic signal. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 469 kB | Shaun Ewing | Mar 20, 1917 00:00 | US-1219949-A // Electromagnetic signal. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1219003.pdf | 219 kB | Shaun Ewing | Mar 13, 1917 00:00 |
|
US-1219003-A // Binding-post. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 219 kB | Shaun Ewing | Mar 13, 1917 00:00 | US-1219003-A // Binding-post. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1218221.pdf | 284 kB | Shaun Ewing | Mar 06, 1917 00:00 |
|
US-1218221-A // Fuse-block. // Charles H. Smith // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 284 kB | Shaun Ewing | Mar 06, 1917 00:00 | US-1218221-A // Fuse-block. // Charles H. Smith // Kellogg Switchboard & Supply | ||||
| PDF File 1217255.pdf | 604 kB | Shaun Ewing | Feb 27, 1917 00:00 |
|
US-1217255-A // Telephone-system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 604 kB | Shaun Ewing | Feb 27, 1917 00:00 | US-1217255-A // Telephone-system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 1216641.pdf | 2.09 MB | Shaun Ewing | Feb 20, 1917 00:00 |
|
US-1216641-A // Automatic telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.09 MB | Shaun Ewing | Feb 20, 1917 00:00 | US-1216641-A // Automatic telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 1215814.pdf | 1.15 MB | Shaun Ewing | Feb 13, 1917 00:00 |
|
US-1215814-A // Switch for automatic telephone systems. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.15 MB | Shaun Ewing | Feb 13, 1917 00:00 | US-1215814-A // Switch for automatic telephone systems. // William Kaisling // Kellogg Switchboard & Supply |
