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公开(公告)号：US2182662A
公开(公告)日：1939-12-05
申请号：US17628637
申请日：1937-11-24
Applicant: GEN ELECTRIC
Inventor： DUNHAM GEORGE W , LAUTZ RAYMOND T
IPC: D06F65/06
CPC classification number: D06F65/06 , Y10T74/20546
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