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Reference Questions:
statelibrary@wyo.gov
Wyoming State Library
2800 Central Ave.
Cheyenne, WY 82002
(307) 777-6333

Project Lead:
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(307) 777-7281



Oldest Wyoming Patent
Oldest Wyoming Patent
Number 67,898
Improvement in Cartridge-Belts 
Anson Mills
Fort Bridger, Utah Territory
August 20, 1867