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发明名称
Material control apparatus and method
摘要
申请公布号
US1940946(A)
申请公布日期
1933.12.26
申请号
US19290332947
申请日期
1929.01.16
申请人
HAMILTON, BEAUCHAMP & WOODWORTH
发明人
HAMILTON EDWARD M.;WOODWORTH SELIM E.
分类号
G05D11/03
主分类号
G05D11/03
代理机构
代理人
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地址
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