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发明名称
GAS CABLE INSTALLATION
摘要
申请公布号
CA450856(A)
申请公布日期
1948.08.31
申请号
CAD450856
申请日期
申请人
CANADIAN GENERAL ELECTRIC COMPANY LIMITED
发明人
FRANK W. ENGSTER
分类号
主分类号
代理机构
代理人
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