Electrostatic gas cleaning apparatus
Element and process for selectively forming positive or negative
Fixing and retrieving recorded information produced by means of
Flash exposure of supersensitized silver halide photographic lig
Fluid utilized in apparatus for purifying air
Glass painting method
High energy recording on an acetyl acetonate
High resolution halftone microimages and method therefor
Hologram and method of production thereof
Image recording material and method for forming an image using t
Imaging by light-enhanced vaporization
Imaging method
Infra red photography with silver halide films using infrared an
Infrared hologram recording method
Light-absorbing filters
Lith-type silver halide photographic light-sensitive material
Marker making methods for cutting fabric patterns
Method for desensitizing recorded organic volume phase holograph
Method for enhancing the image contrast in color television pict
Method for fabricating reflection infrared holograms