Dual-head wrench
The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.
The dual-head wrench is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.
Claims
The ornamental design for a dual-head wrench, as shown and described.
Type: Grant
Filed: May 9, 2016
Date of Patent: May 2, 2017
Inventor: Chao-Chih Liu (Taichung)
Primary Examiner: Randall Gholson
Application Number: 29/563,928