Adjustable base invalid lift
United States Patent 2821406
US Patent References:
/0699186.html
- - 0699186

Portable crane
- - 2023790

Device for movement of aircraft
- - 2287955

Lever lock
- - 2427804

Collapsible boat trailer
- - 2608418


Inventors:
Hoyer, Theodore R.
Hildemann, Victor R.
Publication Date:
01/28/1958
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Assignee:
TED HOYER & COMPANY INC
Primary Class:
280/657
Other Classes:
254/2R, 74/536, 5/83.100
International Classes:
A61G7/10
US Patent References:
2706120Floor crane with adjustable legs
2739783Body transfer hoist
Foreign References:
DE907838C