Title:
Riser
Document Type and Number:
United States Patent 2445619

Inventors:
Josephs, John J.
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Sponsored by:
Flash of Genius
Publication Date:
07/20/1948
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Referenced by:
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Assignee:
Josephs, John J.
Primary Class:
5/81.10R
Other Classes:
5/507.100
International Classes:
A61G7/053; A61G7/05
US Patent References:
0897722
1349674Means for lifting and transporting invalids
1350401Baby-walker
1509750Amusement device
1765361Nursery play apparatus
1890396Invalid's support
1971583Invalid walker
2129260Combination wheeled chair and crutch


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