Calculating machine : Pascal
Camera : George Eastman
Carburetor : Gottlieb Daimler
Carburettor : Gottlieb Daimler
Cash register : William Burroughs
Cell Doctrine : Rudolf Virchow
Celluloid : A. Parker
Cement : Joseph Aspdin
Cenema : A. L. and J. L. Lumiere
Centrigrade scale : A. Celsius
Chemical Structure : August Kekule
Chemotherapy : Paul Ehrlich
Child Development : Jean Piaget
Chloroform : James Harrison & James Young Simpson
Cholera : Bacillus Robert Koch
Chromosomal : Theory of Heredity Thomas Hunt Morgan
Chronometer : John Harrison
Cine camera : Friese-Greene
Cinematograph : Thomas Alva Edison
Cinematography : Thomas Alva Edison
Circulation of the Blood : William Harvey
Classical Field Theory : Michael Faraday
Clock (machanical) : Hsing and Ling-Tsan
Clock (pendulum) : C. Hugyens
Coloured Photography : Lippman
Computer : Charles Babbage
Continental Drift : Alfred Wegener
Cosmic Rays : R. A. Millikan
Crescograph : J.C.Bose
Crystal Dynamics : C.V.Raman
Cyclotron : Lawrence