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发明名称
Electrical coding and de-coding device
摘要
申请公布号
US1938028(A)
申请公布日期
1933.12.05
申请号
US19290405000
申请日期
1929.11.05
申请人
THE FIRM CHIFFRIERMASCHINEN AKTIENGESELLSCHAFT
发明人
KORN WILLI
分类号
G09C1/12
主分类号
G09C1/12
代理机构
代理人
主权项
地址
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