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经营范围
发明名称
Filter making apparatus
摘要
申请公布号
US2083921(A)
申请公布日期
1937.06.15
申请号
US19340708843
申请日期
1934.01.29
申请人
THE WESTERN STATES MACHINE COMPANY
发明人
ROBERTS EUGENE
分类号
B23K1/008
主分类号
B23K1/008
代理机构
代理人
主权项
地址
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