2007-06-05
2007-06-05
De, Mimosa (Department: 2913)
Design Patent
active
29240148
CLAIM:
The ornamental design for a portable backrest, as shown and described.
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patent: D304400 (1989-11-01), Schultz
patent: 5884971 (1999-03-01), Davis et al.
patent: D433855 (2000-11-01), Turner et al.
patent: D463177 (2002-09-01), Li
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