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发明名称
Partitioning
摘要
申请公布号
US2020502(A)
申请公布日期
1935.11.12
申请号
US19290354735
申请日期
1929.04.13
申请人
THE E. F. HAUSERMAN COMPANY
发明人
GODDARD ALVIN C.
分类号
E04B2/78
主分类号
E04B2/78
代理机构
代理人
主权项
地址
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