B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
22/122
B22C 9/12 (2006.01) B22C 9/10 (2006.01) B22C 9/18 (2006.01) B22C 21/14 (2006.01)
Patent
CA 1106132
EARL E. FRANK FOR: FOUNDRY MOLDS Abstract of the Disclosure Hand and patching of recesses in the side walls of a sand mold, intended to receive a core, is avoided by filling the recess, after the core is emplaced with a complemental pre-molded cover.
308371
Abex Corporation
Macrae & Co.
LandOfFree
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