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发明名称
Ratchet and pawl stepping mechanism
摘要
申请公布号
US2977811(A)
申请公布日期
1961.04.04
申请号
US19580775878
申请日期
1958.11.24
申请人
NORTH ELECTRIC COMPANY
发明人
ROBERTS WILLARD A.
分类号
F16H31/00
主分类号
F16H31/00
代理机构
代理人
主权项
地址
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