US 2524554 Erect, monitor and maintain wildlife fences

SO3 Monitor fence for effectiveness : AC1 Regular patrols etc.

AC 3 An assessment is made of what is required to repair weaknesses in a fence.

SO 4 AC1 A fence is repaired to ensure that it always meets the prescribed standards.

SO 4 AC3Weaknesses in a fence are identified and corrected using appropriate techniques, tools and equipment