Work helmet
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The details shown in broken lines form no part of the claimed design.
Claims
We claim the ornamental design for a work helmet, as shown and described.
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D518241 | March 28, 2006 | Finquel |
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Type: Grant
Filed: May 11, 2006
Date of Patent: Jan 1, 2008
Assignee: (Petaluma, CA)
Inventors: Robert Wise (Petaluma, CA), Peter Muller (Woodside, CA)
Primary Examiner: Ruth McInroy
Attorney: Glenn Patent Group
Application Number: 29/246,815