Kern Swiss

==Mechanische Werkstätte Jakob Kern==
===1819–1885===
==Kern & Co.==
===1885–1891===
===1891–1897===
===1897–1914===
===1914–1926===
===1926–1988===
==Kern Swiss==
===1988–1991===
Category:Leica
Category:Switzerland
Category:Defunct