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Inventions
Aviation
Business
Crime
Journalism
Law & Politics
Literature
Maritime
Medicine
Military
Music
Science
Sports
Stage & Screen
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On This Day
19 November 1961:
Thomas Ryan died.
Thomas Ryan died.
See Also
Mini Profile
Norman Breakey
The Toronto resident invented the paint roller in 1940 but, when imitators started showing up everywhere, he did not have the funds to defend his patent. His other inventions include a device for tapping beer kegs and a supermarket inventory system.
See other inventors.
See all mini profiles.
The Toronto resident invented the paint roller in 1940 but, when imitators started showing up everywhere, he did not have the funds to defend his patent. His other inventions include a device for tapping beer kegs and a supermarket inventory system.
See other inventors.
See all mini profiles.