US PATENT SUBCLASS 73 / 170.06
.~.~ With illumination means or an electro-optical indicator (e.g., beacon or signal lamp)

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

170.01  DF  FLUID FLOW DIRECTION (E.G., WIND SOCK, WEATHER VANE, ETC.) {4}
170.05  DF  .~ Using a fluid actuated alignment device (e.g., wind sock, weather vane, etc.) {3}
170.06.~.~ With illumination means or an electro-optical indicator (e.g., beacon or signal lamp)

DEFINITION

Classification: 73/170.06

With illumination means or an electro-optical indicator (e.g., beacon or signal lamp):

(under subclass 170.05) Subject matter combined with (a) means for illuminating the alignment device or (b) means responsive to electricity for indicating the fluid flow direction.

SEE OR SEARCH CLASS

362, Illumination, for an illumination device, per se.