1
Martin Robert M: Horizontal bar exercising device. December 26, 1972: US3707285 (76 worldwide citation)

An exercise device including a pair of upright poles interconnected by top and bottom cross members, the bottom cross member being slidable on the poles and adapted to be biased upwardly by spring elements at opposite ends. A horizontally disposed weight may be detachably carried on the bottom cross ...


2
Bernard Fredette: Exercise bar assembly. Ronald S Kosie, Robert Brouillette, Nicolas Pellemans, November 23, 1999: US05989158 (8 worldwide citation)

A horizontal bar exercising device for use in a room having a floor and a ceiling, the device comprising first and second support posts designed to extend vertically between the floor and ceiling and a horizontal bar having first and second ends interconnected with the first and second posts respect ...


3
Carr Herbert, Carr Raymond Vincent: Improvements in or relating to metal rod or tube gymansiusm equipment.. Carr Gymnasium Equipment, October 22, 1969: GB1167963-A

1,167,963. Horizontal bar exercising device. CARR GYMNASIUM EQUIPMENT Ltd. 24 July, 1968 [24 April, 1967], No. 18851/67. Heading A6M. Metal tube gymnasium equipment comprising a pair of spaced metal tube uprights 1, 2, each having a series of spaced slots 4, a horizontal metal rod or tube 3, the end ...