Undertaking
Patent
1975-07-28
1977-05-10
Pinkham, Richard C.
Undertaking
A63B 522
Patent
active
040224627
ABSTRACT:
Exercising apparatus similar to a jump rope is provided in the form of a hand held and hand powered single piece planar rigid frame with offset handlegrips to rotate the frame for continuous jumping exercises by one or several persons. The jump rope is provided with male or female fittings whereby two or more jump ropes may be coupled together for two or more persons to jump side by side.
REFERENCES:
patent: 169625 (1875-11-01), Crandall
patent: 2493224 (1950-01-01), Brunt et al.
patent: 3074717 (1963-02-01), Lutz
patent: 3493229 (1970-02-01), Ramsey
patent: 3531111 (1970-09-01), Shafer
Brown Laurence R.
Brown T.
Pinkham Richard C.
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