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发明名称
Record cutting head
摘要
申请公布号
US2033824(A)
申请公布日期
1936.03.10
申请号
US19350002769
申请日期
1935.01.21
申请人
LAMBERT GRETERMAN
发明人
GRETERMAN LAMBERT
分类号
H04R11/08
主分类号
H04R11/08
代理机构
代理人
主权项
地址
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