1982-06-29
1984-09-25
Pinkham, Richard C.
Undertaking
318159, 188161, A63B 2300
Patent
active
044732260
ABSTRACT:
An electronic ratchet for allowing the application of mechanical resistance to an output shaft in one direction while ratcheting in the opposite direction, which comprises, in combination:
REFERENCES:
patent: 2777439 (1957-01-01), Tuttle
patent: 2864048 (1958-12-01), Newell
patent: 3495824 (1970-02-01), Cuinier
patent: 3848467 (1974-11-01), Flavell
patent: 4059790 (1977-11-01), Kennel
Browning Douglas A.
Siegel Nathan
Baltimore Therapeutic Equipment Company
Brown James J.
Picard Leo P.
Pinkham Richard C.
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