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发明名称
Screen plate
摘要
申请公布号
US1937274(A)
申请公布日期
1933.11.28
申请号
US19310521939
申请日期
1931.03.12
申请人
BROWN COMPANY
发明人
HOYLE ALFRED D.;OISON FREDERICK B.
分类号
D21D5/04
主分类号
D21D5/04
代理机构
代理人
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