Abdominal muscle trainer
Description
FIG. 1 is a top perspective view of an abdominal muscle trainer showing our new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a side elevational view thereof; and,
FIG. 4 is an end elevational view thereof.
Referenced Cited
U.S. Patent Documents
D230444 | February 1974 | Kogoj et al. |
3729227 | April 1973 | Ohta et al. |
4489936 | December 25, 1984 | Monte |
Patent History
Patent number: D284394
Type: Grant
Filed: Sep 22, 1983
Date of Patent: Jun 24, 1986
Inventors: Lars G. F. Bengtson (Goteborg 416 63), Ingvar J. H. Bengtson (Kullavik)
Primary Examiner: Charles A. Rademaker
Application Number: 6/534,575
Type: Grant
Filed: Sep 22, 1983
Date of Patent: Jun 24, 1986
Inventors: Lars G. F. Bengtson (Goteborg 416 63), Ingvar J. H. Bengtson (Kullavik)
Primary Examiner: Charles A. Rademaker
Application Number: 6/534,575
Classifications
Current U.S. Class:
D21/191