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发明名称
WELDED JOINT FOR PIPE HAVING INTERNAL COATING
摘要
申请公布号
CA869429(A)
申请公布日期
1971.04.27
申请号
CAD869429
申请日期
申请人
AMERICAN MACHINE AND FOUNDRY COMPANY
发明人
ORVILLE C. BERG;NEWLIN W. KESSLER
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主分类号
代理机构
代理人
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