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发明名称
Phonogaph-record attachment
摘要
申请公布号
US1776470(A)
申请公布日期
1930.09.23
申请号
US19280326304
申请日期
1928.12.15
申请人
JONES JOE J
发明人
JONES JOE J.
分类号
G11B3/00
主分类号
G11B3/00
代理机构
代理人
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