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发明名称
Verre de contact et procédé et dispositif pour sa fabrication
摘要
申请公布号
FR1032831(A)
申请公布日期
1953.07.06
申请号
FRD1032831
申请日期
1951.02.19
申请人
DIPLOMOPTIKER ALBERT BRAUN
发明人
分类号
G02C7/04
主分类号
G02C7/04
代理机构
代理人
主权项
地址
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