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发明名称
Cutter chain
摘要
申请公布号
US2413585(A)
申请公布日期
1946.12.31
申请号
US19430499094
申请日期
1943.08.18
申请人
JOY MANUFACTURING COMPANY
发明人
SIMMONS LEON E.;VANDERZEE HARRY H.
分类号
E21C35/193
主分类号
E21C35/193
代理机构
代理人
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