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发明名称
Perfectionnements aux matières plastiques orientées et à leur procédé de fabrication
摘要
申请公布号
FR917657(A)
申请公布日期
1947.01.17
申请号
FRD917657
申请日期
1945.10.19
申请人
INTERNATIONAL POLAROID CORPORATION
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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