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经营范围
发明名称
Polarizing crystalline formation by transfer and expansion
摘要
申请公布号
GB622109(A)
申请公布日期
1949.04.27
申请号
GB19460008674
申请日期
1946.03.20
申请人
ALVIN MARKS
发明人
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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