Undertaking
Patent
1981-10-05
1984-05-29
Hafer, Robert A.
Undertaking
272117, 272DIG4, A63B 2302, A63B 2304
Patent
active
044510330
ABSTRACT:
Weighted bars may be pivotally connected at one end outward of the pedals on a stationary bicycle exerciser and provided with hand grips at the opposite end to permit the exercise of the upper body as well as exercise of the lower body on the bicycle.
REFERENCES:
patent: 1676270 (1928-07-01), Mattison
patent: 2261355 (1941-11-01), Flynn
patent: 2356260 (1944-08-01), Maxwell
patent: 3392976 (1968-07-01), Hayes
patent: 3539185 (1970-11-01), Andis
patent: 3664027 (1972-05-01), Fritz
patent: 3690655 (1972-09-01), Chapman
New Total Jogger, The New York Times, Sunday, Sep. 7, 1969, Shopping Guide, p. 29S.
Barnes John C.
Hafer Robert A.
Kramer Arnold W.
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