Switch spring
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The broken lines depict portions of the switch spring that form no part of the claimed design.
Claims
The ornamental design for a switch spring, as shown and described.
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Type: Grant
Filed: May 5, 2017
Date of Patent: Mar 17, 2020
Assignees: CITIZEN ELECTRONICS CO., LTD. (Yamanashi-Ken), CITIZEN WATCH CO., LTD. (Tokyo)
Inventor: Shinsuke Watanabe (Yamanashi-ken)
Primary Examiner: Karen E Kearney
Assistant Examiner: Kristin E Reed
Application Number: 29/602,952