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发明名称
Hinge pin lock
摘要
申请公布号
US2802369(A)
申请公布日期
1957.08.13
申请号
US19540445101
申请日期
1954.07.22
申请人
JOY MANUFACTURING COMPANY
发明人
MCPHEE RAYMOND D.
分类号
E21C25/36;F16G13/06
主分类号
E21C25/36
代理机构
代理人
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