Telescopic cylinder assembly
United States Patent 2634587
US Patent References:
/RE07438.html
- - RE07438


Inventors:
Ptak, Raymond H.
Publication Date:
04/14/1953
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Assignee:
NEW YORK AIR BRAKE CO
Primary Class:
92/52
Other Classes:
92/110, 92/DIG.001, 92/108, 92/117A, 91/206, 187/234
International Classes:
B66F9/22; B66F9/20