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发明名称
Phonographic film
摘要
申请公布号
US2029979(A)
申请公布日期
1936.02.04
申请号
US19340746492
申请日期
1934.10.02
申请人
LE FILM OZAPHANE
发明人
BERNHEIM ROGER
分类号
G03B31/00;G03C5/14;G11B27/06
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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