Crutch apparatus

Details Crutch apparatus Crutch apparatus

2006-03-14

2006-03-14

Snapp, Sandar S. (Department: 2915)

Design Patent

active

D0516800

CLAIM:
The ornamental design for a crutch apparatus, as shown and described.

REFERENCES:
patent: 4141375 (1979-02-01), Tykwinski
patent: 4254948 (1981-03-01), Jacobs
patent: 4291715 (1981-09-01), Monte
patent: D291148 (1987-08-01), Rizzo
patent: 4924894 (1990-05-01), Martinez
patent: D361655 (1995-08-01), Lunceford
patent: D362506 (1995-09-01), Bieri
patent: 5746236 (1998-05-01), Tilsley et al.
patent: D419288 (2000-01-01), Hartfield
patent: 6494919 (2002-12-01), Matthews

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