Title:
Adjustable walking aid
United States Patent 2474722
US Patent References:
/0885339.html
- - 0885339

/1035760.html
- - 1035760

/1073991.html
- - 1073991

Crutch
- - 1505081

Spring latch
- - 1720593


Inventors:
Blume, Herbert E.
Publication Date:
06/28/1949
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Assignee:
Blume, Herbert E.
Primary Class:
135/69
Other Classes:
403/324, 403/322.200, 403/325, 135/65, 403/108
International Classes:
A45B9/00; A45B19/04; A61H3/02; A45B19/00; A61H3/00
US Patent References:
2146495Novelty walking cane