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发明名称
Insulation for underground conduits and method of producing the same
摘要
申请公布号
US2774383(A)
申请公布日期
1956.12.18
申请号
US19550512953
申请日期
1955.06.03
申请人
INSUL-FIL CO., INC.
发明人
KIDD ALEXANDER C.
分类号
F16L59/12;F16L59/15
主分类号
F16L59/12
代理机构
代理人
主权项
地址
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