Patent search ap:("PHILIPS NV") AND inv:"OVEREEM CORNELIS VAN" Page 1

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发明授权
Device for mechanical recording 失效
Title translation: 机械记录装置

公开(公告)号：US2154589A

公开(公告)日：1939-04-18

申请号：US5843536

申请日：1936-01-09

Applicant: PHILIPS NV

Inventor： ROELOF VERMEULEN , OVEREEM CORNELIS VAN

IPC: G11B11/00 , G11B15/29 , G11B15/62

CPC classification number: G11B15/62 , G11B11/00 , G11B15/29

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