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发明名称
Asbestos-cement pipe
摘要
申请公布号
US2269436(A)
申请公布日期
1942.01.13
申请号
US19400350372
申请日期
1940.08.03
申请人
THE RUBEROID CO.
发明人
CHRISTOPHER ARTHUR B.
分类号
B28B21/52;F16L9/08
主分类号
B28B21/52
代理机构
代理人
主权项
地址
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