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经营范围
发明名称
Absorbent filter for smoking appliances
摘要
申请公布号
US1919959(A)
申请公布日期
1933.07.25
申请号
US19320591255
申请日期
1932.02.06
申请人
MINTON PAUL H
发明人
MINTON PAUL H.
分类号
A24F7/04
主分类号
A24F7/04
代理机构
代理人
主权项
地址
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