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公开(公告)号：US3408493A
公开(公告)日：1968-10-29
申请号：US60142066
申请日：1966-12-13
Applicant: SERVO CORP OF AMERICA
Inventor： WESTOVER THOMAS A , MARK WEINSTEIN
IPC: B61L1/16
CPC classification number: B61L1/165
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