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公开(公告)号:US2978188A
公开(公告)日:1961-04-04
申请号:US71508558
申请日:1958-02-13
Applicant: IVAR FREDRIKSON GUSTAV
Inventor: IVAR FREDRIKSON GUSTAV
CPC classification number: B67D1/1405 , F16K23/00
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2.
公开(公告)号:US2753982A
公开(公告)日:1956-07-10
申请号:US33387953
申请日:1953-01-29
Applicant: IVAR FREDRIKSON GUSTAV
Inventor: IVAR FREDRIKSON GUSTAV
IPC: B65G17/08
CPC classification number: B65G17/086 , B65G2201/02
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