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发明名称
GYPSUM BOARD FORMING
摘要
申请公布号
US3578517(A)
申请公布日期
1971.05.11
申请号
USD3578517
申请日期
1968.08.26
申请人
NATIONAL GYPSUM CO.
发明人
LEON R. LAPP;EDWARD A. BURKARD
分类号
B28B19/00;(IPC1-7):B32B13/04
主分类号
B28B19/00
代理机构
代理人
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