Investment material

B - Operations – Transporting – 28 – B

Patent

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22/108, 6/46

B28B 7/34 (2006.01) B22C 1/00 (2006.01)

Patent

CA 1080405

INVESTMENT MATERIAL Abstract of the Disclosure In the manufacture of non-ferrous investment cast- ing molds, a new investment material composed of a gypsum binder and a refractory which is at least in part pyrophyllite.

278430

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