Stair climbing conveyance - Dunn Jr., Edward D.

Title:

Stair climbing conveyance

United States Patent 3166138

Inventors:

Dunn Jr., Edward D.

Publication Date:

01/19/1965

Export Citation:

Assignee:

Dunn Jr., Edward D.

Primary Class:

180/9.23

Other Classes:

180/9.1, 180/9.32, 180/9.48, 180/65.6, 280/5.22, 280/11, 280/211, 280/DIG.10

International Classes:

A61G5/06; B62D55/075; A61G5/00; B62D55/00

View Patent Images:

US Patent References:

3127188	N/A
2978095	Elevating belt conveyor for discrete materials in bulk
2824597	Wheel chair width control
2793868	Carrier cart provided with stair climbing endless treads
2765860	Selective wheeled or endless belt supports for self-propelled vehicles
2634663	Tractor
2605852	Steering control for track laying vehicles
2592023	Motor-driven invalid's chair
2578828	Ambulatory invalid chair
2319008	Carriage truck
2259871	Clutch control
1930823	Vehicle propelling mechanism
1858753	Expansible bushing for winding cores
1738523	Vehicle
1237499	N/A
1111510	N/A
1105379	N/A
0838228	N/A
0653199	N/A

Foreign References:

DE968705C
GB541253A