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https://drivepatents.com/patents/1013543 · 27 Apr 2011
A brake-equipped swivel caster comprises a movable pin allowed to move up and down and normally retained in its uppermost position by an elastic member, and a bifurcated brake member including two downward-extending brake pieces, arranged with its top adja...
https://drivepatents.com/patents/1014524 · 30 Mar 2011
A brake-equipped swivel caster including a tired wheel rotatably fitted to a support leg comprises a movable pin allowed to move up and down inside the vertical axial member and normally retained by an elastic member in its uppermost position, left and rig...