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发明名称
Plaster base
摘要
申请公布号
US2099709(A)
申请公布日期
1937.11.23
申请号
US19340724008
申请日期
1934.05.05
申请人
PENN METAL COMPANY, INC.
发明人
SPINOSA ARTHUR V.
分类号
E04F13/04
主分类号
E04F13/04
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