Patent search ap:("VALENTINO THOMAS J" OR "ROBERT FINE") AND inv:"VALENTINO THOMAS J" Page 1

1.

发明授权
Apparatus for making aural announcements 失效
Title translation: 用于制作听觉通知的装置

公开(公告)号：US2561602A

公开(公告)日：1951-07-24

申请号：US76436647

申请日：1947-07-29

Applicant: VALENTINO THOMAS J , ROBERT FINE

Inventor： VALENTINO THOMAS J , ROBERT FINE

IPC: G11B15/02 , G11B15/18 , G11B23/32 , G11B27/10 , G11B27/34

CPC classification number: G11B15/18 , G11B15/02 , G11B23/32 , G11B27/10 , G11B27/34

Patent Agency Ranking