发明名称 FILM DISPLAY DEVICE
摘要 A film display device of compact design having between the usual two storage spools, a gate through which the film is passed. The two spools are able to rotate on approximately parallel axes, and the film by means of specially positioned rollers is caused to twist so that the axes of the spools are approximately parallel with the line of movement of the film through the gate.
申请公布号 US3642227(A) 申请公布日期 1972.02.15
申请号 USD3642227 申请日期 1969.09.11
申请人 MARCON CO. LTD. THE 发明人 JOHN HENRY REGINALD LEWIS
分类号 G01C21/22;(IPC1-7):G03B1/04;G11B15/32 主分类号 G01C21/22
代理机构 代理人
主权项
地址