DM

David A. Matkin

BL British-American Tobacco (Holdings) Limited: 1 patents #2 of 12Top 20%
Overall (1982): #70,371 of 81,411Top 90%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4363333 Tobacco-smoke filters — 1982-12-14