发明授权
US2930285A Continuously operated device for projecting still picture film with synchronized sound 失效
连续操作的设备,用于投影具有同步声音的静态图像胶片

  • 专利标题: Continuously operated device for projecting still picture film with synchronized sound
  • 专利标题(中): 连续操作的设备,用于投影具有同步声音的静态图像胶片
  • 申请号: US56038556
    申请日: 1956-01-20
  • 公开(公告)号: US2930285A
    公开(公告)日: 1960-03-29
  • 发明人: PLATT STEPHEN A
  • 申请人: PLATT STEPHEN A
  • 专利权人: Stephen A Platt
  • 当前专利权人: Stephen A Platt
  • 优先权: US56038556 1956-01-20
  • 主分类号: G03B31/06
  • IPC分类号: G03B31/06
Continuously operated device for projecting still picture film with synchronized sound
信息查询
0/0