B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/158, 6/45
B22C 1/18 (2006.01)
Patent
CA 1200053
ABSTRACT An improved composition and process for preparing plaster molds used in casting nonferrous metals is provided wherein plaster molds are prepared from particulate calcium sulfate molding plaster admixed with insoluble calcium sulfate anhydrite whisker fibers.
427947
Greve Dale R.
Ravins Thomas L.
Fetherstonhaugh & Co.
Georgia-Pacific Corporation
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