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On This Day
27 March:
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Canadian Books & Authors
Mini Profile
George H. Cluthe

The owner of Cluthe Manufacturing Co. in Waterloo, Ontario invented the interchangeable head screwdriver. He patented the design in 1965.

See other inventors.

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Dickins, Punch
Henning, Doug
May, Wop
O'Malley, Joan
Yanofsky, Abe


See also: Mini profiles and Canadian Books and Authors.