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- Thomson-Houston Regulator, 1883-1892 -

- 1883-1892
- Collections - Artifact
Thomson-Houston Regulator, 1883-1892
- Westinghouse Induction Regulator, 1888 -

- 1888
- Collections - Artifact
Westinghouse Induction Regulator, 1888
- Cutler-Hammer Regulator, circa 1915 -

- circa 1915
- Collections - Artifact
Cutler-Hammer Regulator, circa 1915
- Tirrill Potential Regulator, circa 1899 -

- circa 1899
- Collections - Artifact
Tirrill Potential Regulator, circa 1899
- Westinghouse Stage Regulator, circa 1890 -

- circa 1890
- Collections - Artifact
Westinghouse Stage Regulator, circa 1890
- Westinghouse Regulator, 1886-1889 -

- 1886-1889
- Collections - Artifact
Westinghouse Regulator, 1886-1889
- Sperry Electric Company Automatic Regulator, 1882-1887 -

- 1882-1887
- Collections - Artifact
Sperry Electric Company Automatic Regulator, 1882-1887
- Edison Automatic Voltage Regulator -

- Collections - Artifact
Edison Automatic Voltage Regulator
- Regulator -

- Collections - Artifact
Regulator