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经营范围
发明名称
Automatic tourist log
摘要
申请公布号
US1817979(A)
申请公布日期
1931.08.11
申请号
US19300463500
申请日期
1930.06.24
申请人
FITCH WILLIAM H
发明人
FITCH WILLIAM H.
分类号
G01C22/00
主分类号
G01C22/00
代理机构
代理人
主权项
地址
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