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6827042 |
Elephant incursion prevention apparatus
A device to prevent incursion of wild elephants into human populated areas, and thereby protect the lives of both wild elephants and humans living in close proximity to elephant refuges, is...
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5310163 |
Barriers
A barrier is fixed on a wall or other perimeter structure by way of support posts. The barrier has a support shaft along which a number of rotatable units are mounted. Each rotatable unit is formed...
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5143354 |
Animal retentive fence attachment
An attachment to a fence, such as a chain link fence, used to confine a dog, prevents the dog from climbing the fence or using the top of the fence to assist himself in escaping over the fence. The...
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4739970 |
Rotary anti-scaling device
A rotary anti-scaling device comprises a pair of substantially identical halves connected together at a relative displacement of 180° about a central transverse axis through the halves to form a...
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4348012 |
Intruder barrier
An intruder barrier for mounting on the top or side face of a wall is provided. The intruder barrier consists essentially of a scaling barrier formed from a number of blades radially arranged and...
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4325651 |
Protected traffic controller spikes
The inclined projecting spikes used by parking lots to discourage entrance through the exit are guarded for protection of pedestrians. The guards take the form of either shrouds over the spikes or...
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4270736 |
Climb inhibiting rail
A climb inhibiting structure for integration with, or attachment to, a fence run incorporating a longitudinally extending rod-like bearing member that is mounted in parallel-displaced relationship...
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RE14247 |
Title is not available
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