Sales bulletin of Envirex Ltd., Waukesha, Wisconsin, entitled "PFT Dystor Gas Holder" published in 1989. |
Sales bulletin of Petrex, Inc., Warren, Pennsylvania, "PETREX Oil-Water Separator Cover System", published 1982. |
Sales literature of Staff Industries, Inc., Detroit, Michigan, "Industries, Inc. The International Leader in Large-Scale Containment Liners and Floating Cover Systems", publication date unknown. |
Sales literature of Revoc, Inc., Henniker, New Hampshire, "Containment Systems Municipal/Industrial/Water/Waste", published 1982. |
Sales brochure of Conservatek Industries, Inc., Conroe, Texas, "The Best Covers for Wastewater Treatment", publication data unknown. |
Sales literature of Fiberglass Structures/Canbar Inc., Waterloo, Ontario, Canada, "Canbar Fiberglass Structures", publication date unknown. |
Sales literature of Burke Ruber Company, San Jose, California, "Hypalon from Burke, For Jobs No Other Pond Liner or Cover Can Handle", published 1982. |
Chemical Equipment, "Selecting Flame and Detonation Arresters", May, 1991, p. 16. |