LIQUID FILLER AND LEVELLER CHARACTERIZED BY A MANUALLY CONTROLLED PISTON OPENING AND CLOSING SYSTEM OF THE LIQUID DRAIN HOLES AND VENT AIR SIMULTANEOUSLY AND AUTOMATICALLY

IT7210907U1Inactive Publication Date: 1974-05-15DEMARIA MARIO

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Patent Information

Authority / Receiving Office: IT · IT
Patent Type: Utility models
Current Assignee / Owner: DEMARIA MARIO
Filing Date: 1972-11-15
Publication Date: 1974-05-15
Estimated Expiration: Not applicable · inactive patent

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