Secondary containment platform
The broken lines in the drawings illustrate environmental structure on the article and form no part of the claimed design.
Claims
The ornamental design for a secondary containment platform, as shown and described.
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Type: Grant
Filed: Oct 17, 2012
Date of Patent: Jun 3, 2014
Inventor: David R. Graham, II (Grand Junction, CO)
Primary Examiner: Katrina A Betton
Application Number: 29/434,873