Grille for cellar ventilation passages, water collection wells and similar elements made of sheet metal

IT747033U1Inactive Publication Date: 1976-04-16DITTA LAM DI MITELLI ANGELO

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Patent Information

Authority / Receiving Office: IT · IT
Patent Type: Utility models
Current Assignee / Owner: DITTA LAM DI MITELLI ANGELO
Filing Date: 1974-10-16
Publication Date: 1976-04-16
Estimated Expiration: Not applicable · inactive patent

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