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Inventor
O'BRIEN ROBERT MURRAY
CA
2 patents
Patents
2 patents
US11560055B2
Jan 24, 2023
Self-balancing two-wheeled vehicle
SPIN MASTER LTD
1 citations
68
US12011997B2
Jun 18, 2024
Self-balancing two-wheeled vehicle
SPIN MASTER LTD
0 citations
57