September 23 - This Day in Patent History (TDIPH) - Flash bulb used in photography patented

On September 23, 1930, Johannes Ostermeier was issued a patent for the flash bulb used in photography.

Patent Information
Patent Number: US 1776637 A
Patent Title: Flash lamp
Publication number: US1776637 A
Publication date: 23 Sep 1930
Filing date: 5 Apr 1929
Priority date: 28 Feb 1929
Inventors: Ostermeiel Johannes

us1776637