Johannes Petrus VAN DER WALT

GL General Mining Union Corporation Limited: 1 patents #8 of 16Top 50%

📍 Roodepoort, ZA: #25 of 72 inventorsTop 35%

Overall (All Time): #3,921,074 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4805415	Mine cooling	Carl S. J. Van Rensburg	1989-02-21