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经营范围
发明名称
Air signal valve
摘要
申请公布号
US1885363(A)
申请公布日期
1932.11.01
申请号
US19320587601
申请日期
1932.01.19
申请人
LEITNER LAWRENCE L
发明人
LEITNER LAWRENCE L.
分类号
G10K9/18
主分类号
G10K9/18
代理机构
代理人
主权项
地址
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