Rudert, Johann Georg · worked 1750
Rudert, Johann Michael · worked 1808–1842
Rudick, Joseph · worked 1921–1924
Rudiger, Freidrich · 1868–1932
Rudiger, M. · worked 1820
Rudiger, Moritz · worked 1890
Rudolph, Johann · worked 1770–1780
Rudolphi, Carl · worked 1925
Rudurt (Rudert), Martin · worked 1748–1755
Rue, Carl M. · worked 1780
Rugemer, Bruno · 1894–1980
Rugeri, Antonio · worked 1723
Rugeri, Carlo · Cremona · 1666–1713
Rugeri, Giacinto · Cremona · 1661–1697
Rugeri, Giovanni Battista · 1653–1711
Rugeri, Vincenzo · Cremona · 1663–1719
Rugeri (Ruggieri), Francesco · Cremona · 1620–1698
Ruggiero, Matthew · worked 1975
Rugginelli, G. D. · d. c.1920
Rummelhoff, Hansen J. · 1877–1918
Rumsey, M. E. · worked 1924
Rumstedt, Samuel · worked 1720
Rundstrom, Axel · 1860–1936
Rung, D. · b. 1893
Runius, Johannis · worked 1697
Ruoff (Rueff), Georg · 1646–1725
Ruperti, Wilhelm · worked 1840–1861
Ruping (Rupinsky), Henry J. · worked 1930–1940
Ruppert, Franz · worked 1800–1810
Ruppert, Johann Heinrich · worked 1718–1736
Ruprecht, Wilhelm · d. 1862
Rush, Thomas · worked 1908
Rushworth & Dreaper · Liverpool · worked 1828–1928
Russell, Thomas · b. 1901
Russell, Thomas · worked 1879
Russo, Michael · worked 1920–1940
Rust, Ben · worked 1961
Ruth (Ruch), Longinus · worked 1750
Rutkowski, Piotr · worked 1900
Rutsch, Franz · worked 1885
Rutz, Karl · Amsterdam · b. 1896
Ruzf, G. M. · worked 1870–1880
Ruzicka, Josef Vojtech · 1878–1937
Ruzout · worked 1795
Rybicki (Ribitzky) · worked 1750
Rychtar, Alois · b. 1876
Rydberg, Ernst · 1870–1933
