Definition of "Photostat" :
noun: a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper
noun: a photocopy made on a Photostat machine
verb: make a copy by means of a Photostat device
noun: a duplicating machine that makes quick positive or negative copies directly on the surface of prepared paper
noun: a photocopy made on a Photostat machine
verb: make a copy by means of a Photostat device