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发明名称
Kerf-cutting machine
摘要
申请公布号
US2253626(A)
申请公布日期
1941.08.26
申请号
US19380234522
申请日期
1938.10.12
申请人
SULLIVAN MACHINERY COMPANY
发明人
JOY JOSEPH F.
分类号
E21C29/22
主分类号
E21C29/22
代理机构
代理人
主权项
地址
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