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Industry
CPC
B61L7/106
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B61
Railways
B61L
GUIDING RAILWAY TRAFFIC ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L7/00
Remote control of local operating means for points, signals, or trackmounted scotch-blocks
Current Industry
B61L7/106
for form signals
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last 30 patents
Information
Patent Grant
1507493
Patent number
1,507,493
Issue date
Sep 2, 1924
B61 - RAILWAYS
CPC
B61L7/106
Information
Patent Grant
