Jan Hendrik Wessel Hartemink

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Lichtenvoorde, NL

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Patents Grantslast 30 patents

Information Patent Grant
Entertainment system with swing and rotatable seats
- Patent number 8,845,439
- Issue date Sep 30, 2014
- Cobra Beheer B.V.
- Albert Louisito Phillipus Kroon
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Supporting system for a mast
- Patent number 8,672,769
- Issue date Mar 18, 2014
- Cobra Beheer B.V.
- Albert Louisito Phillipus Kroon
- A63 - SPORTS GAMES AMUSEMENTS