John,Not mentioned earlier, but Kern & Link were in business from late 1929 to around mid-1932, having taken over the Kienzle 400-Day clock business in 1929. In 1932, Link went his own way and Adolph Kern continued making clocks based on the Kienzle design that was used by K&L, becoming Kern Uhrenfabrik. In 1937 Kern took in his sons to the company and changed the name to Kern & Söhne.
It might be of interest to you that Kern & Link was still advertising in July 1936 as shown in the attached pictures.
91.2 KB Views: 89
112.5 KB Views: 80