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Method for production of hollow (shell) foundry cores
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Method and apparatus for producing foundry shell molds
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Apparatus for supplying varied quantities of a gaseous curing agent to a rotary core making machine
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Assembly for forming hollow foundry products
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Apparatus and method for heatless production of hollow items, for instance, foundry shell cores
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Fusion process for forming shell cores
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Process and core box assembly for heatless production of hollow items of mineral granular material
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Multi-core box apparatus for the manufacture of hollow mineral products, particularly foundry cores
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