DH

David Hall

VL Vg Instruments Group Limited: 1 patents #2 of 15Top 15%
📍 Flint, CA: #1 of 1 inventorsTop 100%
Overall (1989): #123,053 of 140,708Top 90%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4853539 Glow discharge mass spectrometer Neil E. Sanderson, Edward F. H. Hall 1989-08-01