De Reffye also developed the Reffye 85 mm cannon in 1870. De Reffye also developed in 1866 a mitrailleuse (named Canon à balles), one of the best early machine guns, which was used during the Franco-Prussian War of 1870.
| Graph IRI | Count |
|---|---|
| http://dbkwik.webdatacommons.org | 20 |