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经营范围
发明名称
Improvements in underground pipe lines
摘要
申请公布号
GB488914(A)
申请公布日期
1938.07.15
申请号
GB19370036130
申请日期
1937.12.30
申请人
THE OKONITE-CALLENDER CABLE COMPANY INCORPORATED
发明人
分类号
F16L58/00
主分类号
F16L58/00
代理机构
代理人
主权项
地址
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