Ergometer

Details Ergometer Ergometer

1985-12-17

1988-10-25

Rademaker, Charles A.

Games, toys, and sports goods

Toy

Representation or scale model

Patent

active

D02982676

REFERENCES:
patent: D191792 (1961-11-01), Maratta
patent: D250284 (1978-11-01), Borck
patent: D278268 (1985-04-01), Kiiski
patent: D279811 (1985-07-01), Nakao et al.
patent: 4678182 (1984-03-01), Nakao et al.
patent: 4700942 (1987-10-01), Danchulis

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