DB

Douglas William Batten

Overall (All Time): #2,153,888 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7265555 Loop impedance meter Martin Ian Gordon 2007-09-04
7170296 Loop impedance meter Martin Ian Gordon 2007-01-30