Patents
Found in 9 Collections and/or Records:
Barnett, J. Dean, 1962-1986
Bovenkerk, H. P., 1960-1966
Dudley H. Cooper patent medicine pamphlets and advertisements, date of production not identified
Cooper's patent.
H. Tracy Hall patents, 1919-1998
Contains patents, correspondence, and legal papers relating to Hall's work of creating man-made diamonds. Contains mostly methods and machinery used to make diamonds and patents awarded to colleagues mostly on pressure apparatuses used in synthesizing diamonds.
Heilner & Ottenheimer Co. patent, 1884 May 23
Patent. Letter confirms full payment to Heilner & Ottenheimer Co. regarding Littlefield's water rights for mining purposes. It reads: "In testimony whereof I. Rutherford B. Hayes, President of the United States of America, have caused these letters to be made Patent, and the Seal of the General Land Office to be affixed." Dated May 23, 1884.
Laraine Day folding foto fan stand patent documents, 1980s
Incldes a younger photograph of Laraine Day presumably used as a prop for the stand.
Strong, H. M., 1959-1973
United States Land Office patents, 1883 November 15
Three notices from the United States Land Office regarding a patent. Dated November 15, 1885.