Sit up exercise machine

Details Sit up exercise machine Sit up exercise machine

2001-02-13

2002-04-16

Hyder, Philip S. (Department: 2912)

Games, toys, and sports goods

Exercise equipment

Platform, frame, or support

CD21S662000

Design Patent

active

D0455802

CLAIM:
The ornamental design for a sit up exercise machine, as shown and described.

REFERENCES:
patent: 3929335 (1975-12-01), Malick
patent: D284394 (1986-06-01), Bengtson et al.
patent: 4863158 (1989-09-01), Tassone
patent: 5098089 (1992-03-01), Harrington et al.
patent: D371177 (1996-06-01), Efobi
patent: 5613252 (1997-03-01), Yu et al.
patent: 5623949 (1997-04-01), Kostich
patent: 5665041 (1997-09-01), Hsieh
patent: D391314 (1998-02-01), Cordero
patent: 5868654 (1999-02-01), Norian
patent: D441811 (2001-05-01), Clarke

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