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发明名称
Scale beam structure
摘要
申请公布号
US2070786(A)
申请公布日期
1937.02.16
申请号
US19340753428
申请日期
1934.11.17
申请人
THE JACOBS BROS. CO., INC.
发明人
ESCHENBACHER HERMANN;KIRCHER PAUL J.
分类号
G01G23/00
主分类号
G01G23/00
代理机构
代理人
主权项
地址
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