Double tapered article
Double-acting hydraulic cylinder for use in an exercising appara
Double-acting hydraulic cylinder for use in an exercising appara
Double-end punching and exercise bag
Downhill skiing exercise machine
Downhill-ski training apparatus
Drive arrangement for a treadmill
Drive system operated by muscle-power
Drive with torque arm support for exercise device
Driving device of a leg exercise machine
Driving mechanism for treadmill
Drop foot device
Dry head swimming exercise float
Dry-training apparatus for simulating crawl swimming movements
Duad treadle exercise apparatus
Dual action air resistance treadmill
Dual action exercise apparatus
Dual action weightlifting machine
Dual action weightlifting machine
Dual action weightlifting machine