发明名称 TAPE CASSETTE SLEEVE
摘要 The invention concerns a sleeve to receive insertion of a cassette case endwise of the sleeve, there being retainer means on the sleeve to flex as the cassette is inserted or withdrawn, and to unflex into reel openings in the cassette.
申请公布号 US3664492(A) 申请公布日期 1972.05.23
申请号 USD3664492 申请日期 1970.04.10
申请人 ROBERT S. WALLACE 发明人 ROBERT S. WALLACE
分类号 G11B23/023;(IPC1-7):B65D85/67 主分类号 G11B23/023
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