About 3 Trademarks found that are owned by Dubuque County Historical Society

Printed instructional, educational, and teaching materials in the field of contemporary river issues, namely, river careers, river ecology and culture

The mark consists of the stylized words "RiverWorks Discovery" in red letters.

The mark consists of the words "Who Works the Rivers" in blue type on a white background. Below the words "Who Works the Rivers", and separated from them by a white horizontal line, is a mirror image of the same words, in which the letters are light blue at the top of each letter, and then gradually fade to all white at the bottom of each letter.