发明名称 CASE OF FLEXIBLE MAGNETIC RECORDING DISC AND MANUFACTURE THEREOF
摘要 The blanks punched out from a film web and folded to form the jacket are then heated for a short time and cooled again in order to eliminate stresses in the jacket material which give rise to deformations and are also produced by the action of heat during processing of the material.
申请公布号 JPS6231081(A) 申请公布日期 1987.02.10
申请号 JP19860123869 申请日期 1986.05.30
申请人 BASF AG 发明人 BERUNHARUTO RENTSU;KURUTO TSUBUINTSUSHIYAA;DEIITORIHI GURIYUUN;FUUBERUTO FUEERENBAHA;NOORUBERUTO HORU
分类号 G11B23/033;B29C53/04;B29C71/02 主分类号 G11B23/033
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