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发明名称
Potential recording mechanism
摘要
申请公布号
US2262958(A)
申请公布日期
1941.11.18
申请号
US19390257005
申请日期
1939.02.17
申请人
FRANKLIN OFFNER
发明人
OFFNER FRANKLIN
分类号
G01R13/04
主分类号
G01R13/04
代理机构
代理人
主权项
地址
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