Portable back rest

Details Portable back rest Portable back rest

1992-02-20

1993-12-07

Douglas, Alan P.

Furnishings

Furniture, freestanding support, or frame therefor

Element

D 6361, D 6375, D 6502

Patent

active

D03419657

REFERENCES:
patent: D176045 (1955-11-01), Sherman
patent: D192855 (1962-05-01), Mengel
patent: D194497 (1963-02-01), Miller
patent: D194498 (1963-02-01), Miller
patent: D228428 (1973-09-01), Wilson
patent: D230444 (1974-02-01), Kogoj et al.
patent: D230542 (1974-03-01), Badsey
patent: D280054 (1985-08-01), Pedersen
patent: D297686 (1988-09-01), Ellis
patent: D318112 (1991-07-01), Jacques
patent: 3877750 (1975-04-01), Scholpp

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