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经营范围
发明名称
Heat resistant light-polarizing polyvinyl borate film containing borax
摘要
申请公布号
US2554850(A)
申请公布日期
1951.05.29
申请号
US19480033910
申请日期
1948.06.18
申请人
POLAROID CORPORATION
发明人
BINDA FREDERICK J.
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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