Revision of specifications for portable a-c ammeter and voltmeter, and for portable d-c voltmeters, ammeters and volt-ammeters; revision of instructions for rectifiers and motor generators, electric lamps, coded d-c track circuits, automatic interlocking, tractive armature d-c relays, insulated rail joints, and for mechanically applied rail head type bonds and track circuit connectors. (Signal Sec)
Committee V -- Contracts and instructions
Assn Am Railroads -- Advance Reports
1946
35 pages
Report
English
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Committee V -- Contracts and instructions
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Committee V -- Contracts and instructions
Engineering Index Backfile | 1938