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发明名称
Cutter chain
摘要
申请公布号
US2020215(A)
申请公布日期
1935.11.05
申请号
US19330650867
申请日期
1933.01.09
申请人
SULLIVAN MACHINERY COMPANY
发明人
ROSS JOHN
分类号
E21C35/19;E21C35/193
主分类号
E21C35/19
代理机构
代理人
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