Improvement in Machines for Washing Photographs
Description:
Patent for "a new and improved apparatus for washing photographic prints after fixing, for the purpose of removing the double hyposulphite of soda and silver formed in the body of the paper during the process of fixing" (lines 6-11).
Date:
August 17, 1875
Creator:
Caylor, J. L.
Item Type:
Refine your search to only
Patent
Partner:
UNT Libraries Government Documents Department