Cross country ski

Details Cross country ski Cross country ski

1988-01-22

1990-03-27

Marmor, Charles A.

Land vehicles

Skates

Runner type

280610, A63C 500

Patent

active

049114620

ABSTRACT:
Cross country ski comprising an upper longitudinal rib having a generally vertical trapezoid cross section. The longitudinal rib has at least two superimposed layers extending to form the upper base, and two sides of the trapezoid.

REFERENCES:
patent: 2362380 (1943-04-01), Kallstrom et al.
patent: 2560693 (1951-07-01), Hickman
patent: 2695178 (1954-11-01), Rheinfrank, Jr.
patent: 3414279 (1968-12-01), Allain
patent: 4094528 (1978-06-01), Cluzel
patent: 4335531 (1982-06-01), Salomon
patent: 4487427 (1984-12-01), Salomon
patent: 4681725 (1987-07-01), Maruyama
patent: 4714267 (1987-12-01), Abondance et al.

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