Insulating joint especially for underground pipes

IT7420660U1Inactive Publication Date: 1975-07-30GRANDI ENRICO

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Patent Information

Authority / Receiving Office: IT · IT
Patent Type: Utility models
Current Assignee / Owner: GRANDI ENRICO
Filing Date: 1974-01-30
Publication Date: 1975-07-30
Estimated Expiration: Not applicable · inactive patent

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