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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. Ha-ha - Wikipedia

    en.wikipedia.org/wiki/Ha-ha

    Comparison of a ha-ha (top) and a regular wall (bottom). Both walls prevent access, but one does not block the view looking outward. A ha-ha (French: hâ-hâ [a a] ⓘ or saut de loup [so də lu] ⓘ), also known as a sunk fence, blind fence, ditch and fence, deer wall, or foss, is a recessed landscape design element that creates a vertical barrier (particularly on one side) while preserving ...

  5. Electric fence - Wikipedia

    en.wikipedia.org/wiki/Electric_fence

    Buried electric fences (also called "invisible fences" or "electronic fences") are sometimes used to contain dogs or livestock. The buried wire radiates a weak radio signal, which is detected by a collar worn by the animal. The collar emits a warning noise near the wire, but if this is ignored, produces a mild shock.

  6. These easy-to-use fire blankets are just $7 each ... - AOL

    www.aol.com/lifestyle/saved-my-home-these-easy...

    What reviewers say 💬. Over 4,000 shoppers say SecuCaptain fire blankets are a five-star purchase, and that they're breathing a little easier knowing they have them in their safety arsenal ...

  7. Malfunctioning security bollards were removed from Bourbon ...

    www.aol.com/malfunctioning-security-bollards...

    Security barriers in New Orleans that were intended to protect pedestrians from vehicles but at times malfunctioned were removed for replacement before an attacker drove a pickup truck into a ...

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