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发明名称
Filter glass holder
摘要
申请公布号
US2260849(A)
申请公布日期
1941.10.28
申请号
US19390262096
申请日期
1939.03.16
申请人
BOWERS FREDERICK M
发明人
BOWERS FREDERICK M.
分类号
A61F9/06
主分类号
A61F9/06
代理机构
代理人
主权项
地址
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