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发明名称
Dropper
摘要
申请公布号
US2330149(A)
申请公布日期
1943.09.21
申请号
US19420431169
申请日期
1942.02.16
申请人
WALDES KOH-I-NOOR, INC.
发明人
SCHAAFF LOUIS W.
分类号
B01L3/02
主分类号
B01L3/02
代理机构
代理人
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