A new device of engineer J. H. Newmark
A new device of engineer J. H. Newmark automatically shifts the gears of a car by vacuum. About 1930. Photograph
Picture No
10963827
Media ID
46098194
Size
4951px x 3804px
(3.1MB)
Credit
Mary Evans/brandstaetter images
Source
Photograph
Date
1930
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Automatically Gears Newmark Shifts Vacuum
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