Abstract: A method and apparatus for therapeutic treatment wherein pulsed, alternating current, electrical signals are applied to an applicator coil adjacent an area to be treated to produce multi-rhythmic, pulsed, alternating magnetic fields which have a therapeutic effect on the treated area. The frequency of the magnetic fields is in the range 0.5 Hz to 25 Hz and the waveform includes higher harmonics to approximate natural waveforms measured in the body, such as by an EEG.

Abstract: A color copier having a carriage with a platen thereon arranged to engage and hold an electro-photosensitive receptor member movable between a light exposure station having a set of selectable filters of different-color values to project a series of monochromic images from a multicolored master onto the receptor members and a series of developer stations each arranged to contain a developer of a different color but complementary to the color values of the filters, each developer station including a developer plate arranged to be wetted by the developer prior to pressing the developer plate to the receptor member to develop the image thereon, and means to remove excess developer.

Abstract: A microfilm or microfiche adaption unit for photocopier machines which fits to the photocopier machine over the transparent window platen thereof, and has a light source and lens and projection means to project an image through the window to produce a print in the photocopier machine. Direct viewing is also possible.