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发明名称
FOAMED PLASTIC PADDLE OR VANE
摘要
申请公布号
US3548522(A)
申请公布日期
1970.12.22
申请号
USD3548522
申请日期
1967.10.02
申请人
AMERICAN MACHINE & FOUNDRY CO.
发明人
EDWARD CULLUM ROPER
分类号
E01H5/04;(IPC1-7):B32B3/26;B32B5/18;E01H5/00
主分类号
E01H5/04
代理机构
代理人
主权项
地址
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