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length of either 65 or 75 mm. They were dropped from aircraft in containers the same size as 500 kg bombs and were dispersed by a small explosive charge.

Tire deflation device

Inventors patented caltrop-like devices to deflate vehicle tires in a manner useful to law enforcement agencies or the military. They are currently used by the military and police.

Labour disputes

Caltrops have been used at times during labour strikes and other disputes. Such devices were used by some

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