U.S. patent number D300,001 [Application Number 07/019,384] was granted by the patent office on 1989-02-28 for hammer head. This patent grant is currently assigned to Cooper Industries, Inc.. Invention is credited to Thomas W. Oberg.
United States Patent | D300,001 |
Oberg | February 28, 1989 |
Inventors: | Oberg; Thomas W. (Monroe, NC) |
---|---|
Assignee: | Cooper Industries, Inc.
(Houston, TX) |
Appl. No.: | 07/019,384 |
Filed: | February 26, 1987 |
Current U.S. Class: | D8/78; D8/76 |
Field of Search: | ;D8/75-81,105,20 ;81/19-27 ;30/308,308.1,308.2,308.3 ;7/143,144,145 |
D257826 | January 1981 | Jones |
1428287 | September 1922 | Holmes |
1441903 | January 1923 | Balazink |
1517043 | November 1924 | Benson |
1823016 | September 1931 | Widman |
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