Crutch
United States Patent 2771089
US Patent References:
/1063846.html
- - 1063846

Crutch
- - 1505081

Stepladder
- - 2223911

Walking appliance
- - 2642074

Walking aid
- - 2656874


Inventors:
Magida, Herbert N.
Publication Date:
11/20/1956
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Assignee:
Magida, Herbert N.
Primary Class:
135/69
Other Classes:
280/5.320
International Classes:
A61H3/02; A61H3/00
US Patent References:
2738830Walking aid
Foreign References:
GB122694A
GB135275A