Quad cycle and exercise machine

Exercise devices – Involving user translation or physical simulation thereof – Bicycling

Reexamination Certificate

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Details

C280S224000, C280S234000

Reexamination Certificate

active

10688488

ABSTRACT:
This invention is a quad cycle and exercise apparatus with arm and foot power as propulsion. The rider is upstanding during operation.

REFERENCES:
patent: 891872 (1908-06-01), Smith
patent: 1479887 (1924-01-01), Bitner
patent: 1500854 (1924-07-01), Starr
patent: 3498634 (1970-03-01), Sheldon
patent: 5492349 (1996-02-01), Ferez
patent: 5713590 (1998-02-01), Clark
patent: 5775708 (1998-07-01), Heath
patent: 6032970 (2000-03-01), Porter
patent: 6190289 (2001-02-01), Pyles et al.
patent: 6378882 (2002-04-01), Devine
patent: 6485041 (2002-11-01), Janssen

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