Implements or apparatus for applying pushing or pulling force – Screw – Special engaging feature
Patent
1982-04-12
1984-02-21
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Screw
Special engaging feature
254133R, 254DIG4, B66F 336
Patent
active
044325312
ABSTRACT:
An operable vehicle jack for use between aligned peripheries of a pair of vehicle tandem wheels, and having a bell-like housing member associated with a raisable jack portion, whereby upon jack operational raising said housing becomes wedgedly held against and between said aligned tandem wheel peripheries.
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patent: 2597760 (1952-05-01), Strohm
patent: 3808788 (1974-05-01), Viglione
patent: 4277050 (1981-07-01), Mostert
patent: 4283828 (1981-08-01), Cole
Bevans Terry D.
Hammer James L.
Mitchell Wilbur A. E.
Watson Robert C.
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