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发明名称
BORING METHOD AND APPARATUS
摘要
申请公布号
US3540319(A)
申请公布日期
1970.11.17
申请号
USD3540319
申请日期
1969.01.09
申请人
BABCOCK & WILCOX CO.:THE
发明人
MYRON L. GREENBERG
分类号
B23Q1/70;B23Q3/18;B23Q7/14;B23Q16/02;(IPC1-7):B23B39/00
主分类号
B23Q1/70
代理机构
代理人
主权项
地址
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