P. L. Robertson
| Use attributes for filter ! | |
| Gender | Male |
|---|---|
| Death | 72 years ago |
| Date of birth | December 10,1879 |
| Zodiac sign | Sagittarius |
| Born | Haldimand |
| Canada | |
| Date of died | September 28,1951 |
| Died | Ontario |
| Canada | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1654601 |
P. L. Robertson Life story
Peter Lymburner Robertson was a Canadian inventor, industrialist, salesman, and philanthropist who popularized the square-socket drive for screws, often called the Robertson drive.
