Transportation – Perambulator – invalid chair – or stretcher – Walker
Patent
1997-12-11
1999-01-05
Spear, Robert M.
Transportation
Perambulator, invalid chair, or stretcher
Walker
D12142, 1215
Patent
active
D04036247
REFERENCES:
patent: D48561 (1916-02-01), Malickson
patent: D52650 (1918-11-01), Hale
patent: D57873 (1921-05-01), Tew
patent: D61919 (1923-02-01), Parker et al.
patent: D141885 (1945-07-01), Walker
patent: D347817 (1994-06-01), Montag
patent: D390178 (1998-02-01), Maxwell
patent: D391537 (1998-03-01), Maxwell
Lewandowski T P
Spear Robert M.
The Goodyear Tire & Rubber Company
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