Membership
Tour
Register
Log in
with snail
Follow
Industry
CPC
G04C21/08
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
G
PHYSICS
G04
Horology
G04C
ELECTROMECHANICAL CLOCKS OR WATCHES
G04C21/00
Producing acoustic time signals by electrical means
Current Industry
G04C21/08
with snail
Industries
Overview
Organizations
People
Information
Impact
Please log in for detailed analytics
Patents Grants
last 30 patents
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
Chime clock with minute hand shaft rotatable in both directions
Patent number
4,073,130
Issue date
Feb 14, 1978
Spartus Corporation
Christian M. J. Jauch
G04 - HOROLOGY
Information
Patent Grant
Clock with striking mechanism
Patent number
4,036,004
Issue date
Jul 19, 1977
Spartus Corporation
Christian M. J. Jauch
G04 - HOROLOGY
Information
Patent Grant
3520126
Patent number
3,520,126
Issue date
Jul 14, 1970
G04 - HOROLOGY
Information
Patent Grant
3154911
Patent number
3,154,911
Issue date
Nov 3, 1964
G04 - HOROLOGY
Information
Patent Grant
2851850
Patent number
2,851,850
Issue date
Sep 16, 1958
G04 - HOROLOGY
Information
Patent Grant
2779151
Patent number
2,779,151
Issue date
Jan 29, 1957
G04 - HOROLOGY
Information
Patent Grant
2723526
Patent number
2,723,526
Issue date
Nov 15, 1955
G04 - HOROLOGY
Information
Patent Grant
2288933
Patent number
2,288,933
Issue date
Jul 7, 1942
G04 - HOROLOGY
Information
Patent Grant
2209297
Patent number
2,209,297
Issue date
Jul 23, 1940
G04 - HOROLOGY
Information
Patent Grant
2169647
Patent number
2,169,647
Issue date
Aug 15, 1939
G04 - HOROLOGY
Information
Patent Grant
2127635
Patent number
2,127,635
Issue date
Aug 23, 1938
G04 - HOROLOGY
Information
Patent Grant
2077755
Patent number
2,077,755
Issue date
Apr 20, 1937
G04 - HOROLOGY
Information
Patent Grant
2058609
Patent number
2,058,609
Issue date
Oct 27, 1936
G04 - HOROLOGY
Information
Patent Grant
2038965
Patent number
2,038,965
Issue date
Apr 28, 1936
G04 - HOROLOGY
Information
Patent Grant
2014934
Patent number
2,014,934
Issue date
Sep 17, 1935
G04 - HOROLOGY
Information
Patent Grant
1968932
Patent number
1,968,932
Issue date
Aug 7, 1934
G04 - HOROLOGY
Information
Patent Grant
1965141
Patent number
1,965,141
Issue date
Jul 3, 1934
G04 - HOROLOGY
Information
Patent Grant
1872377
Patent number
1,872,377
Issue date
Aug 16, 1932
G04 - HOROLOGY
Information
Patent Grant
1789044
Patent number
1,789,044
Issue date
Jan 13, 1931
G04 - HOROLOGY
Information
Patent Grant
1666351
Patent number
1,666,351
Issue date
Apr 17, 1928
G04 - HOROLOGY
Information
Patent Grant
1513487
Patent number
1,513,487
Issue date
Oct 28, 1924
G04 - HOROLOGY
Information
Patent Grant
1422590
Patent number
1,422,590
Issue date
Jul 11, 1922
G04 - HOROLOGY
Information
Patent Grant
1417620
Patent number
1,417,620
Issue date
May 30, 1922
G04 - HOROLOGY
Information
Patent Grant
1053722
Patent number
1,053,722
Issue date
Feb 18, 1913
G04 - HOROLOGY
Information
Patent Grant
788704
Patent number
788,704
Issue date
May 2, 1905
G04 - HOROLOGY
Information
Patent Grant
768421
Patent number
768,421
Issue date
Aug 23, 1904
G04 - HOROLOGY
Information
Patent Grant
749495
Patent number
749,495
Issue date
Jan 12, 1904
G04 - HOROLOGY
Information
Patent Grant
734366
Patent number
734,366
Issue date
Jul 21, 1903
G04 - HOROLOGY
Information
Patent Grant
594379
Patent number
594,379
Issue date
Nov 30, 1897
G04 - HOROLOGY
Patents Applications
last 30 patents