WERTHEIM- 1928, 1932, 1934, 1955 
ALFA- 1928, 1956
SIGMA-  1923, 1956-  VERITAS-1923-  GRITZNER- 1910
DÜRKOPP- 1923-   SINGER - 1910,  1928, 1935- 

1898, 1922, 1928