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Piero Tognoli
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Gorlago, IT
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Patent Grant
Process and apparatus for precasting prestressed-concrete workpieces
Patent number
4,526,739
Issue date
Jul 2, 1985
Industria Prefabbricati Affini I.P.A. S.p.A.
Antonio Migliacci
B28 - WORKING CEMENT, CLAY, OR STONE