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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1266158.pdf | 217 kB | Shaun Ewing | May 14, 1918 00:00 |
|
US-1266158-A // Railway-train-despatching circuit. // William Reid // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 217 kB | Shaun Ewing | May 14, 1918 00:00 | US-1266158-A // Railway-train-despatching circuit. // William Reid // Kellogg Switchboard & Supply | ||||
| PDF File 1626239.pdf | 166 kB | Shaun Ewing | Apr 26, 1927 00:00 |
|
US-1626239-A // Receiving circuit // Kellogg Leroy D. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 166 kB | Shaun Ewing | Apr 26, 1927 00:00 | US-1626239-A // Receiving circuit // Kellogg Leroy D. // Kellogg Switchboard & Supply | ||||
| PDF File 2116320.pdf | 160 kB | Shaun Ewing | May 03, 1938 00:00 |
|
US-2116320-A // Bell // Miller Carl M. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 160 kB | Shaun Ewing | May 03, 1938 00:00 | US-2116320-A // Bell // Miller Carl M. // Kellogg Switchboard & Supply |
