2 trademarks were found for owners matching the name David John Hart.
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1 TM: 1664421
Desc: G4GUITAR
Owner: David John Hart
Class: 41
Status: Registered: Renewal due
2 TM: 1164724
Desc: PUMP-ED
Owner: Noela Marie Johns, John Fredrick Hartley, Errol John Johns, David Arnold Read, Christopher Glenn Johns
Class: 38, 41
Status: Lapsed: Not accepted