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发明名称
FITTING FOR PERFORATING STEEL WALLED MEMBERS
摘要
申请公布号
CA663623(A)
申请公布日期
1963.05.21
申请号
CAD663623
申请日期
申请人
M. B. SKINNER COMPANY
发明人
PATTERSON D. MERRILL;WILLIAM A. CURTIS;HENRY J. DEFREEUW
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