发明名称 Film with Improved Perforations
摘要 1,176,226. Film-strip perforations. TEVERAMA S.A. March 31, 1967 [May 3, 1966], No. 14986/67. Heading G2C. In a cinematographic film-strip having at least two sequences of images, the image of one sequence being inter-calated with the images of the other, at least one perforation 3 is of slot-like configuration formed by joining two consecutive normal perforations 1, 2 together. Thus if the driving claw forming the intermittent film feed "loses" the phase by jumping from the right perforation to the wrong one, because of damaged perforations, or for any other reason, it is able to correct itself when it enters the slotted perforation.
申请公布号 GB1176226(A) 申请公布日期 1970.01.01
申请号 GB19670014986 申请日期 1967.03.31
申请人 TEVERAMA S.A. 发明人
分类号 B26F1/00;G03D15/00 主分类号 B26F1/00
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