Hen Seg O

OC Orion Electric Company: 1 patents #46 of 160Top 30%

Overall (All Time): #3,566,821 of 4,157,543Top 90%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6495949	Electron tube cathode	Jae Dong Park	2002-12-17