
Imp. Emile Lévy (French, 19th/20th century)

Mathieu Lauweriks (Dutch, 1864 - 1932)

Anonymous

Anonymous

Caran d'Ache (French, 1858-1909)

Alfred Choubrac (French, 1853-1902)

Laboratoire d'actino-biologie (French, 20th Century)

Julius Klinger (Austrian, 1876 – 1942)

Pal (Jean de Paleologue) (Romanian, 1855 - 1942)

E. A. Ritenour (American, 19th/20th Century)

Arthur Secunda (American, 1927-)

Otto Plattner (Swiss, 1886-1951)

Laboratoires Charvoz (French, 20th Century)

Will Phillip Hooper (American, 1855-1938)

Centers for Disease Control and Prevention (American, 1946-)

Hans Rudi Erdt (German, 1883 – 1918)

McRay Magleby (American, 1942-)

Anonymous