Simple equipment produced by British Thomson-Houston Co, specially designed for use on commercial vehicles though other applications are anticipated.
Electrical speed indicator
Automobile Engr
Automobile Engineer ; 24 , n 323
1934
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1945
CLIMB INDICATOR, PRESSURE ACTUATED (VERTICAL SPEED INDICATOR)
SAE Technical Papers | 1947