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经营范围
发明名称
Improvements in or relating to recording apparatus
摘要
申请公布号
GB654109(A)
申请公布日期
1951.06.06
申请号
GB19470024949
申请日期
1947.09.11
申请人
SVENSKA RADIOAKTIEBOLAGET
发明人
分类号
G01C7/00;G01D9/28
主分类号
G01C7/00
代理机构
代理人
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地址
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