Patent search ap:("IBM") AND inv:"HAVENS BYRON L" Page 4

31.

发明授权
Ringing oscillator 失效
Title translation: 振铃振荡器

公开(公告)号：US2562550A

公开(公告)日：1951-07-31

申请号：US6799248

申请日：1948-12-29

Applicant: IBM

Inventor： HAVENS BYRON L

IPC: H03B5/10 , H03K3/78 , H03K3/80 , H03K7/00

CPC classification number: H03K3/80 , H03B5/10 , H03K3/78 , H03K7/00

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