Background
Feller was born in 1871, in Lviv Oblast, Kingdom of Galicia and Lodomeria, to a Jewish family of David and Elizabeta (née Holzer) Feller.
Feller was born in 1871, in Lviv Oblast, Kingdom of Galicia and Lodomeria, to a Jewish family of David and Elizabeta (née Holzer) Feller.
In Donja Stubica, Feller built the pharmaceutical factory, laboratory, and family house with pharmacy. Feller presented "Elsa Fluid" as a cure for all diseases. lieutenant was exported in almost all European countries, as well as Egypt, Japan and China, while in the United States it was very popular at the time of Prohibition, due to high percentage of alcohol in its content.
Feller was great philanthropist who financially helped the students, poor families, children and various societies.
In 1918, he opened a trust fund to help the mothers of a soldiers who were killed in the World War I. Feller died on November 15, 1936, and was buried at the Mirogoj Cemetery.