Cross beams being structural components for manually-operated jacks and manually-operated bottle jacks; Manually-operated shop presses for automobile and truck repair, operation of pressing, pressing on components, removal of press-fit components, and metalworking; Foot-operated shop presses for automobile and truck repair, operation of pressing, pressing on components, removal of press-fit components, and metalworking; Manually-operated jacks; Manually-operated vehicle positioning jack; Manu...