1976-01-15
1978-08-29
Pinkham, Richard C.
Undertaking
272142, A63B 520, A63B 2102
Patent
active
041099060
ABSTRACT:
A skip rope comprising first and second end sections and a resilient central section removably coupled to the end sections. The central section is heavier per unit of length than either of the end sections and is also less flexible. A plurality of the central sections having different characteristics are provided.
REFERENCES:
patent: 85514 (1869-01-01), Cross
patent: 98928 (1870-01-01), Coon
patent: 623698 (1899-04-01), Beckh
patent: 664210 (1900-12-01), Bryon, Jr.
patent: 763475 (1904-06-01), Frazee et al.
patent: 2942881 (1960-06-01), Recalma
Kramer Arnold W.
Peterson Gordon L.
Pinkham Richard C.
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