device to enable the rewind of the film in a sound film projector

• 1. 用于在一电影放映机中输送胶片的电影放映机构和方法 [P] . 中国专利： CN1154017C . 2004.06.16
• 2. 一种用于数字电影放映机的触控管理设备 [P] . 中国专利： CN213685936U . 2021-07-13
• 3. device for the automatic rewind of film in a sound film projector [P] . IT940086B . 1973-02-10

  机译： 用于自动放映有声电影放映机中的电影的设备

• 4. DEVICE ENABLING TO PERFORM THE REWINDING OF THE FILM IN A SOUND MOTION PICTURE PROJECTOR [P] . 美国专利： US3762618A . 1973-10-02

  机译： 能够在声音动态影像投影仪中进行胶片复卷的设备

• 5. DEVICE ENABLING TO PERFORM THE REWINDING OF THE FILM IN A SOUND MOTION PICTURE PROJECTOR [P] . 日本专利： JPS4825530A . 1973-04-03

  机译： 能够在声音动态影像投影仪中进行胶片复卷的设备

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