National Inventors Hall of Fame Inductee Henry Phillips invented the Phillips screw, where its significance lies in the self-centering property.
The History of Phillips Screws
Tools: Why was the Phillips screw invented? - Quora
Henry Phillips's Instagram, Twitter & Facebook on IDCrawl
The History of Early and Modern Screws and Screwdrivers
The History of Early and Modern Screws and Screwdrivers
Tools: Why was the Phillips screw invented? - Quora
How the Phillips Screwdriver Took Over America
Henry F. Phillips 1890-1958
Henry Phillips's Instagram, Twitter & Facebook on IDCrawl
the phillips screw: why? [a sentimental history]
Henry Phillips Hi-res Stock Photography And Images Alamy
Henry F. Phillips 1890-1958