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发明名称
Adjustable filter tip
摘要
申请公布号
US3016902(A)
申请公布日期
1962.01.16
申请号
US19600046232
申请日期
1960.07.29
申请人
LOUIS STEIN
发明人
LIPP DONALD;NASH GERALD C.
分类号
A24D3/04
主分类号
A24D3/04
代理机构
代理人
主权项
地址
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