04465274 is referenced by 50 patents and cites 17 patents.

A hydraulic exercise device that includes an upstanding mast whereon a number of fixed and movable exercise portions for simultaneous and sequential operation are provided, each utilizing an isotonic load system as a load resistance against which exercises are performed, whereby, a bodybuilder at a single station, can exercise all the major muscle groups of his body.

Title
Hydraulic exercise device
Application Number
6/424320
Publication Number
4465274
Application Date
September 27, 1982
Publication Date
August 14, 1984
Inventor
Dennis L Davenport
10 E. 200 South, American Fork, 84003
UT, US
Agent
Robert R Mallinckrodt
M Reid Russell
IPC
A63B 21/00
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