Picture viewer
Picture viewer
Picture viewer
Pocket camera
Pocket-size photometer
Portable hand-held viewing apparatus
Portable movie projector
Portable numerical stereo compiler or the like
Powder cartridge
Print unit for use with film reproducer
Printing attachment for a photographic printer or similar articl
Prism cover for SLR cameras
Process color separator
Process kit for electrophotographic apparatus
Process kit for electrophotographic copier
Processor for film prints
Projection enclosure
Projection kaleidoscope
Projection system
Projector light source or similar article