Form of invitation to bidders on block signal and interlocking work; table of signal and interlocking units; recording and reporting train-control performance; signal cost accounting. (mtg Mar 12 and 13 1934)
Committee VII -- Contracts, records and reports
Am Ry Assn -- Proc (Signal Sec)
1933
7 pages
Aufsatz (Zeitschrift)
Englisch
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Committee VII -- Contracts, records and reports
Engineering Index Backfile | 1934
Committee VII -- Contracts, records and reports
Engineering Index Backfile | 1934
Committee VII -- Contracts and performance records
Engineering Index Backfile | 1931
|Contracts and performance records
Engineering Index Backfile | 1930
Maintenance of way records and reports
Engineering Index Backfile | 1918