Patent search ap:("IBM") AND inv:"HO JOSEPH P L" Page 1

1.

发明授权
Digital to analog converter 失效

公开(公告)号：US3544994A

公开(公告)日：1970-12-01

申请号：US3544994D

申请日：1967-10-02

Applicant: IBM

Inventor： HANSON CHARLES C , HO JOSEPH P L , SEGAR LAWRENCE P

IPC: H03M1/00 , H03K13/04 , H03K17/16 , H03K17/60

CPC classification number: H03M1/00 , H03M1/50

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