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1.Test apparatus for analyzing the performance characteristics of internal combustion engine ignition systems 失效
Title translation: 用于分析内燃机点火系统性能特点的试验装置公开(公告)号:US3551800A
公开(公告)日:1970-12-29
申请号:US3551800D
申请日:1968-06-06
Applicant: IBM
Inventor: WIDMER ALBERT X
CPC classification number: F02P17/00 , G01R31/006
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公开(公告)号:US3339022A
公开(公告)日:1967-08-29
申请号:US33092963
申请日:1963-12-16
Applicant: IBM
Inventor: PAUL ABRAMSON , STILWELL JR GEORGE R , WIDMER ALBERT X
IPC: H04L5/04
CPC classification number: H04L5/04
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3.Data transmitting apparatus employing switches and diodes to selectively transmit pulses of desired polarity 失效
Title translation: 数据发送装置采用开关和二极管来选择性地发送所需极性的脉冲公开(公告)号:US3154697A
公开(公告)日:1964-10-27
申请号:US24870362
申请日:1962-12-31
Applicant: IBM
Inventor: WIDMER ALBERT X , PAUL ABRAMSON
IPC: G08C15/12
CPC classification number: G08C15/12
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公开(公告)号:US3248572A
公开(公告)日:1966-04-26
申请号:US27983963
申请日:1963-05-13
Applicant: IBM
Inventor: WIDMER ALBERT X
IPC: H03K17/58
CPC classification number: H03K17/58
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公开(公告)号:US3050673A
公开(公告)日:1962-08-21
申请号:US6257660
申请日:1960-10-14
Applicant: IBM
Inventor: WIDMER ALBERT X
IPC: G11C27/02
CPC classification number: G11C27/026
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