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发明名称
Visual stock record indicator
摘要
申请公布号
US2236783(A)
申请公布日期
1941.04.01
申请号
US19390293394
申请日期
1939.09.05
申请人
ROTHSCHILD LOUIS S
发明人
ROTHSCHILD LOUIS S.
分类号
G09D1/00
主分类号
G09D1/00
代理机构
代理人
主权项
地址
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