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发明名称
Composition slab
摘要
申请公布号
US1744303(A)
申请公布日期
1930.01.21
申请号
US19250063358
申请日期
1925.10.19
申请人
THE PHILIP CAREY MANUFACTURING COMPANY
发明人
FISCHER ALBERT C.
分类号
E01C11/10;F16L59/02
主分类号
E01C11/10
代理机构
代理人
主权项
地址
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