Viewgraph preparation made easier
Rolls of color-reversal film permit exposure of over 200 viewgraphs on one film loading. Time is saved in film development as roll film lends itself readily to automatic processing.
Broskie, H. W.↗
Engineering topics
Publications and source records attributed to Pate, H. B., Jr..
Rolls of color-reversal film permit exposure of over 200 viewgraphs on one film loading. Time is saved in film development as roll film lends itself readily to automatic processing.