the pendulum controlling contacts, thereby electromagnetically driving the gear-train or several gear-trains

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Patents Grantslast 30 patents

Information Patent Grant
2500443
- Patent number 2,500,443
- Issue date Mar 14, 1950
- G01 - MEASURING TESTING
Information Patent Grant
1743231
- Patent number 1,743,231
- Issue date Jan 14, 1930
- G04 - HOROLOGY
Information Patent Grant
1493279
- Patent number 1,493,279
- Issue date May 6, 1924
- G04 - HOROLOGY
Information Patent Grant
741735
- Patent number 741,735
- Issue date Oct 20, 1903
- G04 - HOROLOGY
Information Patent Grant
222424
- Patent number 222,424
- Issue date Dec 9, 1879
- G04 - HOROLOGY
Information Patent Grant
176740
- Patent number 176,740
- Issue date May 2, 1876
- G04 - HOROLOGY
Information Patent Grant
90841
- Patent number 90,841
- Issue date Jun 1, 1869
- G04 - HOROLOGY