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公开(公告)号：US3020923A
公开(公告)日：1962-02-13
申请号：US81349159
申请日：1959-05-15
Applicant: CONTROLS CO OF AMERICA
Inventor： JOHNSON ROY W , BIERMANN WILLIAM A
IPC: F24C5/16
CPC classification number: F24C5/16 , Y10T137/6116 , Y10T137/7303
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