Drill chuck

Latest The Jacobs Manufacturing Co., Ltd. Patents:

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a side elevation view of a drill chuck embodying my new design; a view from the opposite side would be substantially the same;

FIG. 2 is a rear elevation view thereof; and

FIG. 3 is a front elevation view thereof.

Referenced Cited
U.S. Patent Documents
D76379 September 1928 Connell
1940405 December 1933 Englund
2075031 March 1937 Emrick
Patent History
Patent number: D259855
Type: Grant
Filed: Aug 17, 1978
Date of Patent: Jul 14, 1981
Assignee: The Jacobs Manufacturing Co., Ltd. (Sheffield)
Inventor: George C. Derbyshire (Sheffield)
Primary Examiner: W. Stallard
Attorney: Stephen J. Rudy
Application Number: 5/934,524
Classifications
Current U.S. Class: D 8/68
International Classification: D0801;