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发明名称
Light polarizing polyvinyl orthoborate films
摘要
申请公布号
US2444712(A)
申请公布日期
1948.07.06
申请号
US19450603583
申请日期
1945.07.06
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
SIGNAIGO FRANK KERR
分类号
G02B5/30;G02B27/28
主分类号
G02B5/30
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代理人
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地址
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