Editing Caltrop (section)

===Tire deflation device===
{{See also|Spike strip}}
[[File:Caltrop.jpg|thumb|right|Caltrop used by the US [[Office of Strategic Services]]. The hollow spikes puncture self-sealing rubber tires. The hole in the center allows air to escape even if other ends of the tube are sealed by soft ground.]]
Inventors patented caltrop-like devices to deflate vehicle tires in a manner useful to law enforcement agencies or the military.<ref>
{{cite web
| url= http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=US2346713&F=0&QPN=US2346713
| title= Caltrop
| access-date=11 April 2008
| first= Walker
| last= Brooks
| date= 18 April 1944
| work= US2346713
| publisher= European Patent Office}}
</ref><ref>
{{cite web
| url = http://v3.espacenet.com/textdoc?DB=EPODOC&IDX=US5921703&F=0
| title= Caltrop
| access-date=11 April 2008
| first= Jonathan
| last= Becker
| date= 13 July 1999
| work= US5921703
| publisher= European Patent Office|display-authors=etal}}
</ref> They are currently used by the military and police.<ref name=HistoryNet/>