25th October 1946, Page 54
25th October 1946
Page 54
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Page 54, 25th October 1946
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Control Valve For Suction Operated Trailer Brakes
F ROMthe Clayton Dewandre Co., Ltd., and J. Rodway, both of Titanic Works, Lincoln, comes, in patent No. 578,314, an improved type . of vacuum control-valve for use with......