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发明名称
Closure for slotlike apertures
摘要
申请公布号
US2353086(A)
申请公布日期
1944.07.04
申请号
US19410418084
申请日期
1941.11.06
申请人
WALDES KOH-I-NOOR, INC.
发明人
SCHAAFF LOUIS W.
分类号
A44B11/26;F41A27/10
主分类号
A44B11/26
代理机构
代理人
主权项
地址
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