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!colspan="3" | [[1929/en|1929]] << [[1930/en|1930]] >> [[1931/en|1931]] | !colspan="3" | [[1929/en|1929]] << [[1930/en|1930]] >> [[1931/en|1931]] | ||
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== Events == | |||
*On [[January 11|11th January]], [[1930/en|1930]], [[Hatot, Léon|Léon Hatot]] was awarded the main patent No. 704.910 for the [[Blancpain Rolls|Rolls]]-watch automatic [[winding mechanism]]. The additional patents Nos. 38.984, 39.523 and 39.581 were awarded to him on [[November 30|30th November]], [[1931/en|1931]]. | *On [[January 11|11th January]], [[1930/en|1930]], [[Hatot, Léon|Léon Hatot]] was awarded the main patent No. 704.910 for the [[Blancpain Rolls|Rolls]]-watch automatic [[winding mechanism]]. The additional patents Nos. 38.984, 39.523 and 39.581 were awarded to him on [[November 30|30th November]], [[1931/en|1931]]. | ||
== Births == | |||
== Deaths == | |||
*[[Hesse, Gustav|Gustav Hesse]] died on [[October 28|28th October]], [[1930/en|1930]]. | |||
[[Category:Year]] | [[Category:Year]] | ||
Version vom 8. November 2011, 02:33 Uhr
| 1929 << 1930 >> 1931 |
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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
Deaths
- Gustav Hesse died on 28th October, 1930.