发明名称 Thin-walled cassette cover.
摘要 <p>A videocassette cover 12 has reduced wall thickness. The upper wall 56 of the cover 12 has a first portion 164 of conventional thickness in the center of the cover upper wall 56 and spaced from the side, front, and rear walls. The first portion 164 extends over an area which encompasses at least the area contacted by the reel spring 54. The upper wall 56 also has a second portion 166 of reduced thickness located adjacent the side, front, and rear walls. &lt;IMAGE&gt;</p>
申请公布号 EP0568057(A2) 申请公布日期 1993.11.03
申请号 EP19930106953 申请日期 1993.04.29
申请人 MINNESOTA MINING AND MANUFACTURING COMPANY 发明人 ANDERSON, GREGORY P.;BERNARD, JOHN M.;JOHANSON, BRADLEY J.
分类号 G11B23/087;(IPC1-7):G11B23/087 主分类号 G11B23/087
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