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3137511
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Information
Patent Grant
3137511
References
Source
Patent Number
3,137,511
Date Filed
Not available
Date Issued
Tuesday, June 16, 1964
60 years ago
CPC
A61G5/061 - for climbing stairs
A61G5/006 - convertible to stretchers or beds
A61G5/066 - with endless belts
A61G2005/0858 - comprising a scissor-type frame
A61G2005/0883 - having locking means for maintaining a folded or unfolded condition
A61G2005/0891 - having rigid supports
US Classifications
280 - Land vehicles
296 - Land vehicles: bodies and tops
297 - Chairs and seats
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