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 1411465.pdf | 926 kB | Shaun Ewing | Apr 04, 1922 00:00 |
|
US-1411465-A // Operator's circuits // White Harold T. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 926 kB | Shaun Ewing | Apr 04, 1922 00:00 | US-1411465-A // Operator's circuits // White Harold T. // Kellogg Switchboard & Supply | ||||
| PDF File 1408125.pdf | 4.38 MB | Shaun Ewing | Feb 28, 1922 00:00 |
|
US-1408125-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.38 MB | Shaun Ewing | Feb 28, 1922 00:00 | US-1408125-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1405175.pdf | 1.98 MB | Shaun Ewing | Jan 31, 1922 00:00 |
|
US-1405175-A // Telephone system // Yanochowski George A. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.98 MB | Shaun Ewing | Jan 31, 1922 00:00 | US-1405175-A // Telephone system // Yanochowski George A. // Kellogg Switchboard & Supply | ||||
| PDF File 1403671.pdf | 2.33 MB | Shaun Ewing | Jan 17, 1922 00:00 |
|
US-1403671-A // Telephone system // Dean William W. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.33 MB | Shaun Ewing | Jan 17, 1922 00:00 | US-1403671-A // Telephone system // Dean William W. // Kellogg Switchboard & Supply | ||||
| PDF File 1402936.pdf | 2.78 MB | Shaun Ewing | Jan 10, 1922 00:00 |
|
US-1402936-A // Automatic telephone system // Ide Harry H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.78 MB | Shaun Ewing | Jan 10, 1922 00:00 | US-1402936-A // Automatic telephone system // Ide Harry H. // Kellogg Switchboard & Supply | ||||
| PDF File 1401217.pdf | 390 kB | Shaun Ewing | Dec 27, 1921 00:00 |
|
US-1401217-A // Switchboard-plug // Weiss Alfred H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 390 kB | Shaun Ewing | Dec 27, 1921 00:00 | US-1401217-A // Switchboard-plug // Weiss Alfred H. // Kellogg Switchboard & Supply | ||||
| PDF File 1400590.pdf | 5.20 MB | Shaun Ewing | Dec 20, 1921 00:00 |
|
US-1400590-A // Selective telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.20 MB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400590-A // Selective telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | ||||
| PDF File 1396072.pdf | 465 kB | Shaun Ewing | Nov 08, 1921 00:00 |
|
US-1396072-A // Relay // Sparks Charles // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 465 kB | Shaun Ewing | Nov 08, 1921 00:00 | US-1396072-A // Relay // Sparks Charles // Kellogg Switchboard & Supply | ||||
| PDF File 1395679.pdf | 838 kB | Shaun Ewing | Nov 01, 1921 00:00 |
|
US-1395679-A // Ignition-switch // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 838 kB | Shaun Ewing | Nov 01, 1921 00:00 | US-1395679-A // Ignition-switch // Kaisling William // Kellogg Switchboard & Supply | ||||
| PDF File 1394132.pdf | 714 kB | Shaun Ewing | Oct 18, 1921 00:00 |
|
US-1394132-A // Electrical switch // Yanochowski George A. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 714 kB | Shaun Ewing | Oct 18, 1921 00:00 | US-1394132-A // Electrical switch // Yanochowski George A. // Kellogg Switchboard & Supply | ||||
| PDF File 1391136.pdf | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 |
|
US-1391136-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 | US-1391136-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1391135.pdf | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 |
|
US-1391135-A // Semi-automatic telephone system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 | US-1391135-A // Semi-automatic telephone system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1386626.pdf | 446 kB | Shaun Ewing | Aug 09, 1921 00:00 |
|
US-1386626-A // Electrical switch // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 446 kB | Shaun Ewing | Aug 09, 1921 00:00 | US-1386626-A // Electrical switch // Kaisling William // Kellogg Switchboard & Supply | ||||
| PDF File 1385368.pdf | 1.10 MB | Shaun Ewing | Jul 26, 1921 00:00 |
|
US-1385368-A // Ignition-distributer // Ericson Lawrence // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.10 MB | Shaun Ewing | Jul 26, 1921 00:00 | US-1385368-A // Ignition-distributer // Ericson Lawrence // Kellogg Switchboard & Supply | ||||
| PDF File 1378869.pdf | 698 kB | Shaun Ewing | May 24, 1921 00:00 |
|
US-1378869-A // Circuit-breaker relay // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 698 kB | Shaun Ewing | May 24, 1921 00:00 | US-1378869-A // Circuit-breaker relay // Kaisling William // Kellogg Switchboard & Supply | ||||
| PDF File 1376371.pdf | 2.35 MB | Shaun Ewing | Apr 26, 1921 00:00 |
|
US-1376371-A // Automatic telephone system // Yanochowski George A. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.35 MB | Shaun Ewing | Apr 26, 1921 00:00 | US-1376371-A // Automatic telephone system // Yanochowski George A. // Kellogg Switchboard & Supply | ||||
| PDF File 1371248.pdf | 611 kB | Shaun Ewing | Mar 15, 1921 00:00 |
|
US-1371248-A // Governor for calling devices // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 611 kB | Shaun Ewing | Mar 15, 1921 00:00 | US-1371248-A // Governor for calling devices // Kaisling William // Kellogg Switchboard & Supply | ||||
| PDF File 1368376.pdf | 806 kB | Shaun Ewing | Feb 15, 1921 00:00 |
|
US-1368376-A // Relay-interrupter // Utter Richard I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 806 kB | Shaun Ewing | Feb 15, 1921 00:00 | US-1368376-A // Relay-interrupter // Utter Richard I. // Kellogg Switchboard & Supply | ||||
| PDF File 1367338.pdf | 1.52 MB | Shaun Ewing | Feb 01, 1921 00:00 |
|
US-1367338-A // Switching mechanism // Webster Harry G. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.52 MB | Shaun Ewing | Feb 01, 1921 00:00 | US-1367338-A // Switching mechanism // Webster Harry G. // Kellogg Switchboard & Supply | ||||
| PDF File 1363512.pdf | 1.05 MB | Shaun Ewing | Dec 28, 1920 00:00 |
|
US-1363512-A // Ignition-timer // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.05 MB | Shaun Ewing | Dec 28, 1920 00:00 | US-1363512-A // Ignition-timer // Kaisling William // Kellogg Switchboard & Supply |
