Camden County NJ Archives History .....Keystone Chemical Mfg. Co., Camden, February 28, 1902 ************************************************ Copyright. All rights reserved. http://www.usgwarchives.net/copyright.htm http://www.usgwarchives.net/nj/njfiles.htm ************************************************ File contributed for use in USGenWeb Archives by: Barbara W. Brown buwbrown@comcast.net July 9, 2008, 12:19 pm Statement: The Keystone Chemical Mfg. Co., patentees and manufacturers of Tri Sodium Phosphate, chemical water purifier and boiler scale preventive. Office & works, Camden, N.J. Receipt for payment signed by Henry L. Heuberge, Treas. Additional Comments: The Tri-Sodium Phosphate was shipped to the Pennsylvania Reform School in Morganza, Washington Co., Pa. This file has been created by a form at http://www.genrecords.net/njfiles/ File size: 0.9 Kb This file is located at: http://files.usgwarchives.org/nj/camden/history/local/keystonechemmfgco.txt