Langenberg B.V.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6419254 Vehicle with common wheel for steering and propulsionExpiredAug 15, 00Jul 16, 02[B62M]
5351979 Two-wheeled vehicleExpiredDec 04, 92Oct 04, 94[B62M]
5320372 Rolling device as game of skillExpiredNov 07, 91Jun 14, 94[B62K]

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