发明授权
US4078781A Clamps 失效
夹子

Clamps
摘要:
An adjustable clamp has its main bar formed from flat metal strip with serrations in one edge and a fixed arm may be formed by a bent-around end of this strip. The moving arm can be formed from two flat stampings from strip and a fine adjustment is provided by a screw on this arm, engaging the non-serrated edge of the bar, while the coarse adjustment is provided by a bush or pin between the stampings engaging the serrated edge.
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