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公开(公告)号:US3171402A
公开(公告)日:1965-03-02
申请号:US20144162
申请日:1962-06-11
Applicant: CARLSON RICHARD E
Inventor: CARLSON RICHARD E
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公开(公告)号:US3211079A
公开(公告)日:1965-10-12
申请号:US37792464
申请日:1964-06-25
Applicant: CARLSON RICHARD E
Inventor: CARLSON RICHARD E
CPC classification number: F24H3/006 , F24H9/0052
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