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Endless track supported invalid chair
US 2,751,027 A
Filed
: 05/19/1952
Issued
: 06/19/1956
Est. Priority Date
: 05/19/1952
Status: Expired due to Term
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Current Assignee
Robert B. Mclaughlin
Original Assignee
Robert B. Mclaughlin
Inventors
Mclaughlin, Robert B.
Application Number
US03/288,715
Time in Patent Office
1,492 Days
Field of Search
US Class Current
180/6.5
CPC Class Codes
A61G 5/061
for climbing stairs
A61G 5/066
with endless belts
B62D 55/075
Tracked vehicles for ascend...
Y10S 280/10
Stair climbing chairs
Y10S 297/04
Wheelchair
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