PS

Peter Christian Shann

Overall (2002): #46,691 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6422147 Sequential detonation of explosive charges 2002-07-23
6386111 Stemming arrangement and method for blast holes 2002-05-14