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Patent Drawing of Engine - Rivaz Engine - . Public domain  image

Patent Drawing of Engine - Rivaz Engine - . Public domain image

Uploaded from Eckermann, Erik (2001). World history of the automobile. SAE. pp. 18 - 19. ISBN 076800800X. yLZeQwqNmdgC&pg=PA18&dq=fran%C3%A7ois+isaac+de+rivaz+engine&hl=en&ei=jVG9TdG2Hsy38gPv1eC2BQ&sa=X&oi=bo... More

Patent Drawing of Engine - De Rivaz IC Engine detail - . Public domain  image

Patent Drawing of Engine - De Rivaz IC Engine detail - . Public domain...

Uploaded from reproduction in - Michelet, Henri (1965). L'inventeur Isaac de Rivaz: 1752 - 1828. Editions Saint-Augustin. Retrieved 2011-05-28. Wf-nrnUaZxAC&printsec=frontcover#v=onepage&q&f=false Page 215

Цеппелин над Летним садом

Цеппелин над Летним садом

Русский: Цеппеллин над Летним садомТатарча/tatarça: Җәйге бакча өстендәге Сәпәллин Public domain image of an airship, no copyright restrictions image - Picryl description

Daniellscher Hahn - Public domain sheet music scan

Daniellscher Hahn - Public domain sheet music scan

Deutsch: Daniellscher Hahn nach John Frederic Daniell (* 12. März 1790 in London; † 13. März 1845 ebenda)

Hidrogenmezer

Hidrogenmezer

Hydrogen maser Magyar: Hidrogénmézer

Hydrogen from natural gas schematics

Hydrogen from natural gas schematics

Hydrogen_from_natural_gas_schematics

Cavendish hydrogen - Public domain  drawing

Cavendish hydrogen - Public domain drawing

Scan of a drawing of Cavendish's apparatus for making hydrogen gas

Daniellscher Hahn Orig. - Public domain sheet music scan

Daniellscher Hahn Orig. - Public domain sheet music scan

Deutsch: Daniellscher Hahn, Originalzeichnung

Flasza.Woulfa

Flasza.Woulfa

Woulfe bottle ("bubble bottle", marked as A) used in hydrogen generator