发明授权
US5118023A Two-stage returning mechanism 失效
两阶段回归机制

Two-stage returning mechanism
摘要:
A mechanism for returning a hammer of an electrically-operated tacker from the tack-driving position to the starting position, in two stages, includes first and second hammer-returning elements and a rotating element for returning the hammer to the starting position.
信息查询
0/0