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发明名称
PIPE HEATING ARRANGEMENT
摘要
申请公布号
CA838263(A)
申请公布日期
1970.03.31
申请号
CAD838263
申请日期
申请人
ELECTRO-TRACE CORPORATION
发明人
WALTER C. KAHN
分类号
主分类号
代理机构
代理人
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