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Class 116/108 - Whistling


Subclass of Class 116 - Signals and indicators
Definition: Devices in which air is periodically compressed by the motion
No. of patents: 1
Last issue date: 08/21/2007


NumberTitleIssue Date
7258836Freeze resistant buoy system
A freeze resistant buoy system includes a tail-tube buoy having a thermally insulated section disposed predominantly above a waterline, and a thermo-siphon disposed predominantly below the waterline. ... 		08/21/2007
 
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