Siegfried Duchstein

📍 Bayreuth, DE: #2 of 4 inventorsTop 50%

Overall (1982): #18,812 of 81,411Top 25%

Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4310552	Casting perlite before the swine	—	1982-01-12