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Inventor
KUEPFER MARC
CH
2 patents
Patents
2 patents
US7433271B2
Oct 7, 2008
Calendar mechanism for displaying the date and the day of the week in one timepiece
ETA SA MFT HORLOGERE SUISSE
2 citations
56
US7522476B2
Apr 21, 2009
Calendar mechanism for displaying the date and the day of the week in one timepiece
ETA SA MFT HORLOGERE SUISSE
0 citations
45