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Manufacturers Index - Davis Boring Tool Co.
Patents
This page contains information on patents issued to this manufacturer.

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USPTO = U.S. Patent Office . Images of the actual patent can be viewed on the U.S. Patent Office web site but a special TIFF viewer must be installed with your browser in order properly work. More information on how to configure your computer to view these patents can be found at TIFF image Viewers for Patent Images.
DATAMP = Directory of American Tool And Machinery Patents . A sister site to VintageMachinery.org with information on patents related to machinery and tools. A much easier user interface than the USPTO's for finding information on machinery patents.

Patent Number Date Title Name City Description
802,737 Oct. 24, 1905 Expansion boring-tool Emery E. Davis St. Louis, MO
1,046,739 Dec. 10, 1912 Reaming-tool Emery E. Davis St. Louis, MO The Matthews-Davis Tool Co. was established by Claude L. Matthews and Emery Emmett Davis. It seems that the business was succeeded by the Davis Boring Tool Co., which in turn would become the Davis Boring Tool Division of Giddings & Lewis.
1,046,740 Dec. 10, 1912 Boring-tool Emery E. Davis St. Louis, MO
1,078,611 Nov. 18, 1913 Boring-tool Emery E. Davis St. Louis, MO
205,396 Oct. 18, 1923 Cutters for boring and like bars Christian C. Koeln St. Louis, MO
1,538,174 May. 19, 1925 Holding device Emery E. Davis St. Louis, MO The invention is a holder for a boring tool while being sharpened.
250,547 Jun. 09, 1925 Boring tool Christian C. Koeln St. Louis, MO
1,613,174 Jan. 04, 1927 Device for stoning cutters Christian C. Koeln St. Louis, MO
1,619,855 Mar. 08, 1927 Expansion reamer Emery E. Davis St. Louis, MO
276,826 Jan. 03, 1928 Expansion reamer Emery E. Davis St. Louis, MO
1,674,890 Jun. 26, 1928 Expansion reamer Emery E. Davis St. Louis, MO
282,331 Aug. 07, 1928 Expansible boring tool Emery E. Davis St. Louis, MO
1,698,394 Jan. 08, 1929 Boring device Emery E. Davis St. Louis, MO
1,740,986 Dec. 24, 1929 Expansion reamer James E. Kilzer St. Louis, MO
1,745,207 Jan. 28, 1930 Cylinder-reboring machine Emery E. Davis St. Louis, MO
    Cylinder-reboring machine Christian C. Koeln St. Louis, MO  
1,746,381 Feb. 11, 1930 Boring tool Emery E. Davis St. Louis, MO
1,768,962 Jul. 01, 1930 Expansion boring tool Christian C. Koeln St. Louis, MO
1,881,665 Oct. 11, 1932 Expansion boring tool James E. Kilzer St. Louis, MO
1,941,790 Jan. 02, 1934 Reamer Emery E. Davis St. Louis, MO
2,177,979 Oct. 31, 1939 Chuck Emery E. Davis St. Louis, MO Assignee Otto H. Siewek was owner-operator of Siewek Tool & Die Co., also known as Siewek Tool Co., and latterly known as the Siewek Tool Division of Domestic Industries, Inc., of Ferndale, Michigan.