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发明名称
Automatic measuring device
摘要
申请公布号
US1938942(A)
申请公布日期
1933.12.12
申请号
US19300445424
申请日期
1930.04.18
申请人
AMERICAN MACHINE AND METALS, INC.
发明人
SWARTZ GEORGE ALBERT
分类号
G01F11/46
主分类号
G01F11/46
代理机构
代理人
主权项
地址
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