Jacob Karr
Location: Washington, DC
Years of Operation: 1857-1895
Specialty: Invented the "American Chronometer"
Production Sizes: 18s
Serial Number Lookup
Company Timeline
The Washington Times, Washington, District of Columbia<br />
Saturday, May 11, 1895
1857
In 1857, German immigrant Jacob Karr starts his business in Washington D.C. as a jeweler.
U.S. Patent #44317
September 20, 1864
Jacob Karr is issued a patent for his chronometer invention, designated as the "American Chronometer."
National Republican, Washington, District of Columbia<br />
Friday, December 13, 1867
1868
By the late 1860s, Jacob Karr had established himself as a reputable jeweler and inventor.
The Morning Times, Washington, District of Columbia<br />
Friday, September 20, 1895
1895
Jacob Karr retires from the jewelry business.
The Washington Post, Washington, District of Columbia<br />
Thursday, March 22, 1917
March 21, 1917
Jacob Karr dies at his residence in Washington D.C.