with both mainsprings and driving weights

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Patents Grantslast 30 patents

Information Patent Grant
1211383
- Patent number 1,211,383
- Issue date Jan 9, 1917
- G04 - HOROLOGY
Information Patent Grant
1026727
- Patent number 1,026,727
- Issue date May 21, 1912
- G04 - HOROLOGY
Information Patent Grant
771665
- Patent number 771,665
- Issue date Oct 4, 1904
- G04 - HOROLOGY
Information Patent Grant
767119
- Patent number 767,119
- Issue date Aug 9, 1904
- G04 - HOROLOGY
Information Patent Grant
398400
- Patent number 398,400
- Issue date Feb 26, 1889
- G04 - HOROLOGY
Information Patent Grant
391886
- Patent number 391,886
- Issue date Oct 30, 1888
- G04 - HOROLOGY
Information Patent Grant
241999
- Patent number 241,999
- Issue date May 24, 1881
- G04 - HOROLOGY
Information Patent Grant
78170
- Patent number 78,170
- Issue date May 19, 1868
- G04 - HOROLOGY