David B. Yoo

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Haworth, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Draw key assembly for securing a kingpin
- Patent number 7,503,739
- Issue date Mar 17, 2009
- David B. Yoo
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS

Patents Applicationslast 30 patents

Information Patent Application
Draw key assembly for securing a kingpin
- Publication number 20070036631
- Publication date Feb 15, 2007
- David B. Yoo
- B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS