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发明名称
Indicating device
摘要
申请公布号
US1893198(A)
申请公布日期
1933.01.03
申请号
US19320613658
申请日期
1932.05.26
申请人
RALPH CORSON
发明人
CORSON RALPH
分类号
A62C13/76
主分类号
A62C13/76
代理机构
代理人
主权项
地址
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