Search Results 5 items were found.

Keywords: direct current

  1. Item 18455
    Lyman B. Merritt, Houlton, ca. 1890
    Lyman B. Merritt, Houlton, ca. 1890
    Contributed by: Aroostook County Historical and Art Museum
    Date: circa 1890
    Media: Photographic print
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  2. Item 12544
    W.H.C. Automatic Voltage Regulators, Portland Company, ca. 1904
    W.H.C. Automatic Voltage Regulators, Portland Company, ca. 1904
    Contributed by: Maine Historical Society
    Date: circa 1904
    Media: Ink on paper, Photographic print
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  3. Item 74514
    Westinghouse Shallenberger ampere-hour meter, ca. 1897
    Westinghouse Shallenberger ampere-hour meter, ca. 1897
    Contributed by: Maine Historical Society
    Date: 1897
    Media: Metal, glass
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  4. Item 18991
    Power station in Portland Harbor, ca. 1940
    Power station in Portland Harbor, ca. 1940
    Contributed by: Maine Historical Society
    Date: circa 1940
    Media: Photographic print
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  5. Item 20347
    New Sweden Gustaf Adolph Lutheran Church, ca. 1938
    New Sweden Gustaf Adolph Lutheran Church, ca. 1938
    Contributed by: New Sweden Historical Society
    Date: circa 1938
    Media: Photographic print
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