22 Caliber Conversion for A Colt 45 Caliber Semi-automatic Pistol Patent Print
This Patent for a 22 Caliber Conversion For A Colt 45 Caliber Semi-automatic Pistol was invented by Ruger William B and filed on April 17, 1956. It was issued on August 11, 1959 by the United States Patent and Trademark Office.
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