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经营范围
发明名称
Multiwalled tip shield
摘要
申请公布号
US2541774(A)
申请公布日期
1951.02.13
申请号
US19500164471
申请日期
1950.05.26
申请人
MANN SR JOHN H
发明人
SR. JOHN H. MANN,
分类号
C09C1/52
主分类号
C09C1/52
代理机构
代理人
主权项
地址
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