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经营范围
发明名称
Apparatus for assembling centrifugal impellers
摘要
申请公布号
US2402204(A)
申请公布日期
1946.06.18
申请号
US19410419752
申请日期
1941.11.19
申请人
NORTHROP AIRERAFT, INC.
发明人
PHELAN ARTHUR J.;PAVLECKA VLADIMIR H.
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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