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发明名称
Device for removing pipes made of asbestos cement
摘要
申请公布号
US1744764(A)
申请公布日期
1930.01.28
申请号
US19280320643
申请日期
1928.11.20
申请人
ETERNIT INC.
发明人
HERZOG KARL
分类号
B28B21/90
主分类号
B28B21/90
代理机构
代理人
主权项
地址
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