1930/en
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| 1929 << 1930 >> 1931 |
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Inhaltsverzeichnis
Events
- On 11th January, 1930, Léon Hatot was awarded the main patent No. 704.910 for the Rolls-watch automatic winding mechanism. The additional patents Nos. 38.984, 39.523 and 39.581 were awarded to him on 30th November, 1931.
Births
January
February
March
April
May
June
July
August
September
October
November
December
Deaths
April
- Emile Walker died on 17th April, 1930 in Saint-Imier.
August
- Frédéric-Auguste Marti died on 14th August, 1930 in Vieux-Charmont.
September
- Gustav Rohde died on 1st September, 1930.
October
- Gustav Hesse died on 28th October, 1930.
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