Drywall patch backing stem
The broken lines in
The claimed design is broken in the center to indicate indefinite length.
Claims
The ornamental design for a drywall patch backing stem, as shown and described.
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Type: Grant
Filed: Jul 9, 2012
Date of Patent: Mar 11, 2014
Inventor: Tom Imamura (Seal Beach, CA)
Primary Examiner: Doris Clark
Application Number: 29/426,628