The CAT-Scan Invention

In November 1975 South African physicist and inventor Robert Ledley was granted patent #3,922,552 for a Diagnostic X-ray System also known as a CAT-Scan. Robert Ledley invented a mathematical technique in which the X-ray source and electronic detectors are rotated...

Pratley Putty

South African engineer, George Pratley invented the world famous Pratley Putty. He mostly developed innovative products for the mining sector. George Pratley also invented fun products like robots and miniature motorcycles. He established Pratley Engineering in...