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
Classifications
Current U.S. Class: D21/191