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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 815321.pdf | 3.37 MB | Shaun Ewing | Mar 13, 1906 00:00 |
|
US-815321-A // Automatic telephone selector-switch. // Alexander E. Keith ; John Erickson ; Charles J. Erickson // Automatic Electric Co | |||
| Version 1 (current) | 3.37 MB | Shaun Ewing | Mar 13, 1906 00:00 | US-815321-A // Automatic telephone selector-switch. // Alexander E. Keith ; John Erickson ; Charles J. Erickson // 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 801308.pdf | 522 kB | Shaun Ewing | Oct 10, 1905 00:00 |
|
US-801308-A // Lock for automatic telephone-switch shafts. // John Erickson // Automatic Electric Co | |||
| Version 1 (current) | 522 kB | Shaun Ewing | Oct 10, 1905 00:00 | US-801308-A // Lock for automatic telephone-switch shafts. // John Erickson // Automatic Electric Co |
