IT

Ian Michael Threlfall

PP Pilkington Brothers P.L.C.: 1 patents #2 of 8Top 25%
Overall (1989): #102,659 of 140,708Top 75%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4851471 Process for manufacturing photochromic articles William R. Maltman 1989-07-25