Vacuum-based coupling for train coaches

IN464287001SActive Publication Date: 2026-07-03APURVA INDRODIA +4
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Patent Information

Application Number
IN464287001D
Authority / Receiving Office
IN · IN
Patent Type
Designs
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2026-07-03
Estimated Expiration
2040-07-01

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