Fabricable rear projection-type multiscreen fixing device

Facetted reflector for photocopier

Feed means for optical display device and control system...

Feed means for optical display device and control system...

Feed mechanism for optical displayer

Feed shuttle mechanism for motion picture film strips

Feeding of a machine with a turret supporting removable...

Fiber lens array mounting in reproduction machines

Fiber optical element imaging and illumination assembly

Fiber optically coupled video viewfinder

Fiche-to-fiche copier

Film advance and metering mechanism for cameras

Film advance and shutter cocking device for mirror-reflex...

Film advance control mechanism

Film advance device for surveillance cameras

Film advance mechanism for disc camera

Film advancement control apparatus for cameras

Film advancement control means

Film advancing and locking mechanism for a photographic camera

Film advancing apparatus