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发明名称
GROOVED PIPE COUPLING
摘要
申请公布号
CA769622(A)
申请公布日期
1967.10.17
申请号
CAD769622
申请日期
申请人
ARTHUR W. HALE;GERALD K. HALE;REGINALD D. HALE
发明人
GERALD K. HALE;REGINALD D. HALE;ARTHUR W. HALE
分类号
主分类号
代理机构
代理人
主权项
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