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经营范围
发明名称
Polarizing device
摘要
申请公布号
US2220111(A)
申请公布日期
1940.11.05
申请号
US19360113957
申请日期
1936.12.03
申请人
MARKS ALVIN M
发明人
MARKS ALVIN M.
分类号
G02B5/30
主分类号
G02B5/30
代理机构
代理人
主权项
地址
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