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On This Day
30 November 1874:
LM Montgomery was born.
See Also
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.


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


See also: Mini profiles and Canadian Books and Authors.