US PATENT SUBCLASS 116 / 108
.~.~ Whistling

Current as of: June, 1999
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116 /   HD   SIGNALS AND INDICATORS

67 R  DF  ALARMS {15}
107  DF  .~ Buoy {1}
108.~.~ Whistling

DEFINITION

Classification: 116/108

(under subclass 107) Devices in which air is periodically compressed by the motion of the buoy and utilized for blowing the whistle.

SEE OR SEARCH CLASS

441, Buoys, Rafts, and Aquatic Devices, appropriate subclasses for buoy structure.