Lifting jack
United States Patent 2416848
US Patent References:
/0298257.html
- - 0298257

Jack assemblage
- - 2314589

/1234510.html
- - 1234510

Self-holding jack
- - 2284958


Inventors:
Stewart, Rothery James
Publication Date:
03/04/1947
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Assignee:
Stewart, Rothery James
Primary Class:
Other Classes:
52/651.050, 52/111, 254/1, 52/149
International Classes:
B66F13/00