Microfilm searching and reading device
Microform card including surface locating structure for eliminat
Microform information storage arrangement
Microform information storage arrangement
Microform viewer
Microimage storage and retrieval apparatus
Multiple image projection device
Optical and focusing arrangement for microfiche reader
Optical image projector
Optical rollfiche reader
Orienting projector
Overhead projector
Overhead type file sheet projectors, and file sheets and jacket
Picture information retrieving system
Platen capable of moving in a plane and particularly adapted for
Portable map display device
Portable microfilm reader
Printed material reader and search method therefor
Projection apparatus
Projection apparatus