Title:
PERFORMANCE DISPLAY APPARATUS
United States Patent 3454942


Inventors:
Chamberlin Jr., Henry S.
Graves Jr., Roger E.
Kelley, Joseph P.
Application Number:
US3454942DA
Publication Date:
07/08/1969
Filing Date:
09/22/1966
Assignee:
BIO DYNAMICS INC
Primary Class:
Other Classes:
40/472, 73/379.07, 73/488, 482/63, 482/900
International Classes:
A61B5/22; A63B24/00; (IPC1-7): G08B23/00; A63B21/00; G08B5/22
View Patent Images:
US Patent References:
3375717Exercising measuring system1968-04-02
2784591Cycle ergometer1957-03-12
2504007Bicycle type racing device1950-04-11
1315098N/A1919-09-02