Patent search ap:("COUNTER AND CONTROL CORP") AND inv:"PAPKE KURTH J" Page 1

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发明授权
Counter 失效

公开(公告)号：US2269330A

公开(公告)日：1942-01-06

申请号：US21556738

申请日：1938-06-24

Applicant: COUNTER AND CONTROL CORP

Inventor： ANDREN KARL H , PAPKE KURTH J

IPC: G06M3/02 , G06M3/04

CPC classification number: G06M3/043 , G06M3/021 , Y10T74/19372

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