Electric interlocking handbook by the Engineering staff of the General railway signal company,
General Railway Signal Company.
Bok Engelsk 1917
| Utgitt | Rochester, N.Y., : General railway signal company, , 1917.
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|---|---|
| Omfang | 3 p. l., [5]-435 p. : front., illus., tables, diagrs.
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| Emner |
