Search Manuscripts/Mixed Material

  • Collection
    Edison Electric Light Company records, 1879-1894 Copies of patents granted by the government of Canada to Thomas A. Edison and employees of his firm and codes for insurance underwriters in the United States to create national standards for electrical constuction and operation.
    • Contributor: Edison Electric Light Company
    • Date: 1879
  • Collection
    Edison Electric Light Company records, Catalog Record - Electronic Resource Available Volume I (1879-1894) and volume II (1890-1891) contain verified copies of patents granted by the government of Canada to Thomas A. Edison and employees of his firm for improvements in incandescent lamps and methods of manufacture, fittings and fixtures, electric dynamo machines, electric railroads, and electrical generation and distribution systems; volume III (1885-1894) contains codes for insurance underwriters in the United States to create ...
    • Contributor: Edison Electric Light Company