30th July 1937, Page 56
30th July 1937
Page 56
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Page 56, 30th July 1937
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Novel Method Of Starting Oil . Engines A Résuméof Patent...
That Have Recently Been' Published "GGF.STIONS for easin g the start in g Of oil engines of the lar g er sizes are contained in patent No. 467,621, from Robert Bosch A.G., 4,......