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公开(公告)号：US3074019A
公开(公告)日：1963-01-15
申请号：US73779958
申请日：1958-05-26
Applicant: SERVO CORP OF AMERICA
Inventor： GREENLEAF FRANCIS D , MEYER RONALD F
IPC: H04L7/04
CPC classification number: H04L7/044
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公开(公告)号：US2918581A
公开(公告)日：1959-12-22
申请号：US62817256
申请日：1956-12-13
Applicant: SERVO CORP OF AMERICA
Inventor： WILLEY FRANK G , GREENLEAF FRANCIS D
CPC classification number: G01P3/806 , G06G7/1928
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公开(公告)号：US2911470A
公开(公告)日：1959-11-03
申请号：US42621854
申请日：1954-04-28
Applicant: SERVO CORP OF AMERICA
Inventor： GREENLEAF FRANCIS D , MEYER RONALD F , VILLAR LUIS F
IPC: H04N3/08
CPC classification number: H04N3/08
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