Robertson, Larry L. "Releasable Fish Gaff." U. S. Patent number: 4739573. Washington, DC: United States Patent and Trademark Office, 1988. http://www.uspto.gov/patft/index.html (2 August 2007).
Robertson, Larry L. "Releasable Fish Gaff." U. S. Patent number: 4739573. Washington, DC: United States Patent and Trademark Office, 1988. http://www.uspto.gov/patft/index.html (2 August 2007).
license
identifier
2000048358
created
2007-08-02T13:57:48
license
title
Robertson, Larry L. "Releasabl ...... ft/index.html (2 August 2007).
shortTitle
Robertson, Releasable Fish Gaff (1988)