Title:
WHEELCHAIR
United States Patent 3529688
US Patent References:
Endless track supported invalid chair
- - 2751027
/3127188.html
- - 3127188
Wheel chair for regular and irregular surface travel
- - 3231290
Vehicles for invalids for travel over horizontal and inclined surfaces
- - 3276531
Endless track supported invalid chair
- - 2751027
/3127188.html
- - 3127188
Wheel chair for regular and irregular surface travel
- - 3231290
Vehicles for invalids for travel over horizontal and inclined surfaces
- - 3276531
Inventors:
Bruce, John W.
Publication Date:
09/22/1970
View Patent Images:
Export Citation:
Assignee:
John, Bruce W.
Primary Class:
Other Classes:
180/6.700, 280/5.220
International Classes:
A61G5/06; B62D55/075; A61G5/00; B62D55/00; B62D9/02; B62D55/04