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CPC
G04B21/022
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G
PHYSICS
G04
Horology
G04B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B21/00
Indicating the time by acoustic means
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G04B21/022
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Patents Grants
last 30 patents
Information
Patent Grant
Mechanical watch movement comprising a striking mechanism
Patent number
11,092,931
Issue date
Aug 17, 2021
Montres Breguet SA
Jean-Philippe Rochat
G04 - HOROLOGY
Information
Patent Grant
Time striking device for timepiece
Patent number
4,247,933
Issue date
Jan 27, 1981
Rhythm Watch Company Limited
Norihiko Nakamura
G04 - HOROLOGY
Information
Patent Grant
Clock with hour and quarter hour striking mechanism
Patent number
4,036,005
Issue date
Jul 19, 1977
Spartus Corporation
Christian M. J. Jauch
G04 - HOROLOGY
Information
Patent Grant
2974473
Patent number
2,974,473
Issue date
Mar 14, 1961
G04 - HOROLOGY
Information
Patent Grant
2322257
Patent number
2,322,257
Issue date
Jun 22, 1943
G04 - HOROLOGY
Information
Patent Grant
2054765
Patent number
2,054,765
Issue date
Sep 15, 1936
G04 - HOROLOGY
Information
Patent Grant
2034945
Patent number
2,034,945
Issue date
Mar 24, 1936
G04 - HOROLOGY
Information
Patent Grant
1874316
Patent number
1,874,316
Issue date
Aug 30, 1932
G04 - HOROLOGY
Information
Patent Grant
1789743
Patent number
1,789,743
Issue date
Jan 20, 1931
G04 - HOROLOGY
Information
Patent Grant
1614165
Patent number
1,614,165
Issue date
Jan 11, 1927
G04 - HOROLOGY
Information
Patent Grant
1519797
Patent number
1,519,797
Issue date
Dec 16, 1924
G04 - HOROLOGY
Information
Patent Grant
1496502
Patent number
1,496,502
Issue date
Jun 3, 1924
G04 - HOROLOGY
Information
Patent Grant
1394957
Patent number
1,394,957
Issue date
Oct 25, 1921
G04 - HOROLOGY
Information
Patent Grant
1361424
Patent number
1,361,424
Issue date
Dec 7, 1920
G04 - HOROLOGY
Information
Patent Grant
1216103
Patent number
1,216,103
Issue date
Feb 13, 1917
G04 - HOROLOGY
Information
Patent Grant
1166853
Patent number
1,166,853
Issue date
Jan 4, 1916
G04 - HOROLOGY
Information
Patent Grant
1160065
Patent number
1,160,065
Issue date
Nov 9, 1915
G04 - HOROLOGY
Information
Patent Grant
1149683
Patent number
1,149,683
Issue date
Aug 10, 1915
G04 - HOROLOGY
Information
Patent Grant
1128737
Patent number
1,128,737
Issue date
Feb 16, 1915
G04 - HOROLOGY
Information
Patent Grant
1001668
Patent number
1,001,668
Issue date
Aug 29, 1911
G04 - HOROLOGY
Information
Patent Grant
934913
Patent number
934,913
Issue date
Sep 21, 1909
G04 - HOROLOGY
Information
Patent Grant
927568
Patent number
927,568
Issue date
Jul 13, 1909
G04 - HOROLOGY
Information
Patent Grant
900399
Patent number
900,399
Issue date
Oct 6, 1908
G04 - HOROLOGY
Information
Patent Grant
892067
Patent number
892,067
Issue date
Jun 30, 1908
G04 - HOROLOGY
Information
Patent Grant
859743
Patent number
859,743
Issue date
Jul 9, 1907
G04 - HOROLOGY
Information
Patent Grant
813644
Patent number
813,644
Issue date
Feb 27, 1906
G04 - HOROLOGY
Information
Patent Grant
806336
Patent number
806,336
Issue date
Dec 5, 1905
G04 - HOROLOGY
Information
Patent Grant
806337
Patent number
806,337
Issue date
Dec 5, 1905
G04 - HOROLOGY
Information
Patent Grant
747676
Patent number
747,676
Issue date
Dec 22, 1903
G04 - HOROLOGY
Information
Patent Grant
700456
Patent number
700,456
Issue date
May 20, 1902
G04 - HOROLOGY
Patents Applications
last 30 patents