Jacob Rupertus
American firearm inventor

Jacob Rupertus (1822/1823 – 1921) was an American handgun designer and manufacturer.
Formative years and family
This Jacob Rupertus should not be confused with another Jacob Rupertus (1827-1900), who also lived in Philadelphia, but was not involved in gun manufacturing.
This Jacob Rupertus was born in the Kingdom of Bavaria sometime around 1822 or 1823 and died in Laurel Springs, New Jersey, on February 14, 1921.
Sometime around 1849, he wed Caroline Bechtel, who had been born on February 12, 1831, in Leiterswiller, Bas-Rhin, Alsace, France; she died in Laurel Springs on February 26, 1911. They were buried in the now defunct American Mechanics Cemetery in Philadelphia.
Career
Rupertus founded the Rupertus Patented Pistol Manufacturing Company, which was located 1924 North 4th Street in Philadelphia and was in operation between 1859 and 1899.
On July 19, 1864, he received the US patent No.43.606 for a revolver with a rotating multi-shot barrel group (pepper-box).
The public source identifies “Jacob Rupertus” as american firearm inventor. This brief keeps that definition visible, then builds a research path around Jacob, Rupertus and American.
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated May 11, 2026. The linked authority identifier is Q1677626. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1822, 1823, 1921 and 1827.
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This entry incorporates text from “Jacob Rupertus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.