发明名称 ALBUM POUR RANGER, MONTRER ET MANIPULER DES CLICHES TRANSPARENTS
摘要 A mounting or book for storing, displaying and handling transparencies having at least two sheet sets, each set containing at least one sheet which is pivotally mounted in the book in a manner so that any single sheet can be separately displayed or superimposed upon a single sheet of a further set. At least one carrier frame has a set of sheets hinged to it at one or both edges so that any sheet from a set can be pivoted toward the center of the carrier.
申请公布号 BE773498(A1) 申请公布日期 1972.01.31
申请号 BE19710773498 申请日期 1971.10.05
申请人 ALMQVIST + WIKSELL FORLAG A.B., GAMLA BROGATAN, 26, 111 20 STOCKHOLM, (SUEDE), 发明人
分类号 G03B21/64;(IPC1-7):B42D/ 主分类号 G03B21/64
代理机构 代理人
主权项
地址