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发明名称
Improved Bituminous Pipe Coatings
摘要
申请公布号
GB1192980(A)
申请公布日期
1970.05.28
申请号
GB19670051619
申请日期
1967.11.13
申请人
CHEVRON RESEARCH COMPANY
发明人
ROBERT JAMES SCHMIDT
分类号
F16L58/12;F16L59/14
主分类号
F16L58/12
代理机构
代理人
主权项
地址
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