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公开(公告)号：US2941451A
公开(公告)日：1960-06-21
申请号：US58262456
申请日：1956-05-02
Applicant: HUGHES AIRCRAFT CO
Inventor： HANSON BERGER G , OECHSNER LESTER G
IPC: B23D47/00
CPC classification number: B23D47/005 , Y10T83/0304 , Y10T83/8794 , Y10T409/30952
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