Chair backrest

Design Patent

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Design Patent

active

D0487658

CLAIM:
The ornamental design for chair backrest, as shown and described.

REFERENCES:
patent: D273729 (1984-05-01), Pelly et al.
patent: D289707 (1987-05-01), Favaretto
patent: D295925 (1988-05-01), Uredat-Neuhoff
patent: D306531 (1990-03-01), Snodgrass
patent: D351291 (1994-10-01), Volkle
patent: D358064 (1995-05-01), Larkin
patent: D368399 (1996-04-01), Buffon

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