Transportation – Perambulator – invalid chair – or stretcher – Walker
Design Patent
2002-07-10
2003-06-10
Jackson, Marcus A. (Department: 2911)
Transportation
Perambulator, invalid chair, or stretcher
Walker
Design Patent
active
D0475661
CLAIM:
The ornamental design for a bottom frame of walker, as shown and described.
REFERENCES:
patent: D407352 (1999-03-01), Hu
patent: D428833 (2000-08-01), Chuang
patent: D445143 (2001-07-01), Bellows
patent: D449569 (2001-10-01), Hu
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