Ball chair

Details Ball chair Ball chair

2005-04-05

2005-04-05

Sincavage, Joel A. (Department: 2913)

Design Patent

active

D0503553

CLAIM:
The ornamental design for a ball chair, as shown.

REFERENCES:
patent: 5690389 (1997-11-01), Ekman et al.
patent: 6390559 (2002-05-01), Schnitzhofer
patent: 6447070 (2002-09-01), Ekman et al.
patent: D471025 (2003-03-01), Chiu
patent: D471371 (2003-03-01), Chiu
patent: 6616238 (2003-09-01), Guery-Strahm
patent: 6702388 (2004-03-01), Chiu

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