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发明名称
Signaling device
摘要
申请公布号
US1883971(A)
申请公布日期
1932.10.25
申请号
US19290385055
申请日期
1929.08.10
申请人
KRYZANOWSKY CONSTANT J
发明人
KRYZANOWSKY CONSTANT J.
分类号
G01F23/292
主分类号
G01F23/292
代理机构
代理人
主权项
地址
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