73760774
Oct 31, 1988
Dec 18, 1990
PROTECTIVE ENCLOSURES FOR PHOTOGRAPHS, SLIDES AND NEGATIVES; NAMELY POLYPROPYLENE SLEEVING MATERIAL IN ROLL AND STRIP FORM, ENVELOPES OF GLASSINE AND KRAFT PAPER, POCKETED PAGES OF POLYPROPYLENE AND VINYL, PHOTOGRAPHIC SLIDE MOUNTING FRAMES
Electrical and Scientific Apparatus