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发明名称
Leveling rod
摘要
申请公布号
US1788771(A)
申请公布日期
1931.01.13
申请号
US19270216305
申请日期
1927.08.29
申请人
EUGENE DIETZGEN COMPANY
发明人
LANGSNER ADOLPH
分类号
G01C15/06
主分类号
G01C15/06
代理机构
代理人
主权项
地址
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