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Here is the best I could find with out the patent number:

http://www.google.com/patents?vid=USPAT2608779&id=hnpZAAAAEBAJ&pg=PP1&dq=advertising+rotate+gasoline#PPP1,M1

http://www.google.com/patents?vid=USPAT1754829&id=je5nAAAAEBAJ&dq=advertising+rotation+gasoline&jtp=1#PPP1,M1


Travis E. Towle
Topeka, Kansas

785-357-1004