Patent search ap:("IBM") AND inv:"PALMER HARRY R" Page 1

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发明授权
Stencil aperture tabulating card 失效
Title translation: 模板孔径制表卡

公开(公告)号：US3020836A

公开(公告)日：1962-02-13

申请号：US7871760

申请日：1960-12-27

Applicant: IBM

Inventor： PALMER HARRY R , PRATER MERLE P

IPC: B41L47/06 , B41L47/14 , B41N1/24

CPC classification number: B41N1/242 , B41L47/06 , B41L47/14

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