Lang prototype 35 mm movie projector

Made by the Lang Manufacturing works of Olean, New York, U.S.A

This is the only two shutter projector known other than the Monarch projector.

Mr. Lang was born in Germany and was there involved in the movie machinery industry. When he immigrated to the United States he set up a facility where he manufactured film reels and film rewinders. He was also the holder of several patents related to this field.

I am in need of any and all information on Carl J. Lang of Olean, NY. Information is almost non-existent on Mr. Lang. The Olean Historical society has not responded to my numerous inquiries.