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发明名称
Filter glass holder
摘要
申请公布号
US2055117(A)
申请公布日期
1936.09.22
申请号
US19360068072
申请日期
1936.03.10
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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