Mini parallel bars

Details Mini parallel bars Mini parallel bars

1982-05-28

1983-09-27

Pinkham, Richard C.

Undertaking

A63B 300

Patent

active

044064500

ABSTRACT:
This invention relates to gymnastic exercise devices in general and more specifically to a pair of individual bar members formed on separate support elements to produce a variable spacing quasi-parallel bar structure, which is particularly well suited for the beginning, or younger gymnast.

REFERENCES:
patent: 1410149 (1922-03-01), Williams et al.
patent: 3083964 (1963-04-01), Wentzel
patent: 3184232 (1961-05-01), Nissen
patent: 3258790 (1966-07-01), Maru
patent: 3562994 (1971-02-01), Linsowe
patent: 4046373 (1977-09-01), Kim
patent: 4222559 (1980-09-01), Hammer
NASA Tech Briefs, Removable Fastener for Large Structures, vol. 4, No. 1, Spring 1979, p. 126.

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