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发明名称
Method of making tubes
摘要
申请公布号
US2133137(A)
申请公布日期
1938.10.11
申请号
US19370164800
申请日期
1937.09.20
申请人
NATIONAL VULCANIZED FIBRE CO.
发明人
HACKETT HARRY C.
分类号
B31C11/04
主分类号
B31C11/04
代理机构
代理人
主权项
地址
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