Patent search ap:("INT STANDARD ELECTRIC CORP") AND inv:"WILLIAM FISHER THOMAS" Page 1

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发明授权
Electric wave filter 失效

公开(公告)号：US2619535A

公开(公告)日：1952-11-25

申请号：US5914248

申请日：1948-11-09

Applicant: INT STANDARD ELECTRIC CORP

Inventor： THOMAS PRIOR HECTOR , WILLIAM FISHER THOMAS

IPC: H03H7/01 , H03H9/54

CPC classification number: H03H7/1766 , H03H7/0115 , H03H7/1775 , H03H9/542

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