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公开(公告)号:US2905521A
公开(公告)日:1959-09-22
申请号:US51698255
申请日:1955-06-21
Applicant: STANDARD COIL PROD CO INC
Inventor: HOLLABAUGH MAX G
CPC classification number: G11B5/5591 , G11B5/76
公开(公告)号:US2905521A
公开(公告)日:1959-09-22
申请号:US51698255
申请日:1955-06-21
Applicant: STANDARD COIL PROD CO INC
Inventor: HOLLABAUGH MAX G
CPC classification number: G11B5/5591 , G11B5/76