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Douglas Patents

Dec. 30 1913 Aug 7 1917 MADE FOR PECTIN CALESCO, INC.ROCHESTER.N..

PATENTS The jams, jellies and conserves and the method of making them described in the recipes herein are covered by the following patents, and license to make and use the same is only granted to users of Certo. U.S., May 20, 1919; Canada, Jan. 19, 1915; Great Britain, 19192-13.

Certo is sold under license from the owners of the following patents:

U. S., Dec. 30, 1913; Aug.7, 1917 Canada, Oct. 14, 1913; July 20, 1915 - Great Britain, 12439-13 6497-15