RB

Robert H. Beetle

AB Abex: 1 patents #25 of 69Top 40%
Overall (All Time): #1,669,887 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4807688 Submerged casting — 1989-02-28
4667726 Method of and apparatus for immersion casting — 1987-05-26
4411305 Metal founding — 1983-10-25