NIHF Inductee Henry Phillips Invented the Phillips Screw

National Inventors Hall of Fame Inductee Henry Phillips invented the Phillips screw, where its significance lies in the self-centering property.

Tools: Why was the Phillips screw invented? - Quora

NIHF Inductee Henry Phillips Invented the Phillips Screw

Henry F. Phillips - Wikipedia

The History of the Phillips Screwdriver - Chris Duke

Henry F. Phillips 1890-1958

the phillips screw: why? [a sentimental history]

How the Phillips Screwdriver Took Over America

90 years ago, a Portland inventor patented the Phillips screw

Bit History: The Phillips

Henry F. Phillips 1890-1958

Industry News - Page 71 of 542 Supply Post - Canada's #1 Heavy Construction Equipment & Commercial Truck Newspaper

Henry F. Phillips 1890-1958