P. L. Robertson
id:
p-l-robertson-252-14147931
title:
P. L. Robertson
text:
Peter Lymburner Robertson was a Canadian inventor, industrialist, salesman, and philanthropist who popularized the square-socket drive for screws, often called the Robertson drive. Although a square-socket drive had been conceived decades before, it had never been developed into a commercial success because the design was difficult to manufacture. Robertson's efficient manufacturing technique using cold forming for the screw's head is what made the idea a commercial success.
brand slug:
wiki
category slug:
encyclopedia
description:
Canadian inventor, industrialist, salesman, and philanthropist
original url:
https://en.wikipedia.org/wiki/P._L._Robertson
date created:
date modified:
2023-11-11T15:34:40Z
main entity:
{"identifier":"Q7117397","url":"https://www.wikidata.org/entity/Q7117397"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/f/fc/Robertson_screwdriver_patent_illustration.jpg","width":600,"height":1028}
fields total:
13
integrity:
15