The Kammatograph was a system for motion pictures patented in 1898 in the UK by Leonard Ulrich Kamm and marketed to the general public from 1900.
Leo (Leonard) Ulrich Kamm (born 1861) invented and patented the Kammatograph system for moving pictures.
He was granted a British patent on 3 December 1898 for "Improvements in apparatus for photographing and exhibiting cinematographic pictures" that describes the Kammatograph.
[2] A kammatograph was made of Spanish mahogany, aluminium, and gun metal, was 14 x 13.5 x 3.5 inches (35.5 x 34.3 x 8.9 cm) in size and weighed about 8 lbs (3.6 kg).
[3][4] The kammatograph was one of the product of L Kamm and Co., scientific engineers and manufacturers, 27 Powell Street, Cromwell Road, London E.C.