Title:
Stair climbing wheel chair
United States Patent 3104112


Inventors:
Crail, Jesse W.
Application Number:
US20669862A
Publication Date:
09/17/1963
Filing Date:
07/02/1962
Assignee:
Crail, Jesse W.
Primary Class:
Other Classes:
280/5.28, 280/211, 280/250.1
International Classes:
A61G5/06; A61G5/08
View Patent Images:
US Patent References:
2643898Self-propelled wheel chair1953-06-30
0865514N/A1907-09-10
0838228N/A1906-12-11
Foreign References:
DE215765C
DE717241C1942-02-09
GB137096A1920-01-08