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On This Day
18 February:
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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.

See all mini profiles.


Bondar, Roberta
Callaghan, Helen
Fortune, Rose
Kinnear, Helen
Lawrence, Florence
Lewis, Daurene
Montgomery, Lucy Maud
O'Malley, Joan
Robertson, Jennie Smillie
Tanner, Elaine
Wilson, Bertha


See also: Mini profiles and Canadian Books and Authors.