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2. Invisible Fence Inc. - Wikipedia

   en.wikipedia.org/wiki/Invisible_Fence_Inc.

   Invisible Fence Inc. (commonly referred to as Invisible Fence Brand) is a company that designs radio pet fences for cats and dogs. Manufactured and distributed by Radio System Corporation, the company sells wireless and fenceless systems that were first introduced in 1973. [ 1 ]

3. Pet fence - Wikipedia

   en.wikipedia.org/wiki/Pet_fence

   A pet fence or radio fence, is an electronic system designed to keep a pet or other domestic animal within a set of predefined boundaries without the use of a physical barrier. A mild electric shock is delivered by an electronic collar if its warning sound is ignored.

4. Agricultural fencing - Wikipedia

   en.wikipedia.org/wiki/Agricultural_fencing

   Mesh wire material is spot welded at each junction. Woven wire and mesh wire fences are also called square wire, box wire, page wire, sheep fence, or hog fence in the United States, sheep netting or pig netting in Britain, and ringlock in Australia. Barbed wire fences cannot effectively contain smaller livestock such as pigs, goats or sheep.

5. Barbed wire - Wikipedia

   en.wikipedia.org/wiki/Barbed_wire

   On sheep farms 7-wire fences are common with the second (from bottom) to fifth wire being plain wire. In New Zealand wire fences must provide passage for dogs since they are the main means of controlling and driving animals on farms. Around the turn of the 20th century, in some rural areas, barbed wire fences were used for local telephone networks.

6. Electric fence - Wikipedia

   en.wikipedia.org/wiki/Electric_fence

   A piggyback electric fence is mounted off the back of an existing wire or mesh fence, adding another level of security to the existing perimeter barrier. The piggyback profile is fastened to existing fence posts (e.g. pillars of a palisade fence) using rivets or screws. These are the most commonly used security electric fences. Wall top

7. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!