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发明名称
Recording system
摘要
申请公布号
US1801814(A)
申请公布日期
1931.04.21
申请号
US19270182652
申请日期
1927.04.11
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
LEGG JOSEPH W.
分类号
G01R13/06
主分类号
G01R13/06
代理机构
代理人
主权项
地址
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