Patent search ap:("IBM") AND inv:"BROWER RALPH DOYLE" Page 1

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发明专利
未知

公开(公告)号：DE2509452A1

公开(公告)日：1975-09-18

申请号：DE2509452

申请日：1975-03-05

Applicant: IBM

Inventor： JOHNSON LARRY ALBIN , ROBINSON NEIL LLOYD , STRANG RICHARD HUBERT , VAIR GARY GAIL , RIDDLE STANLEY THOMAS , BROWER RALPH DOYLE

IPC: B24B49/00 , G11B5/187 , G11B5/39 , G11B33/10 , G11B5/22 , G11B5/42

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