US PATENT SUBCLASS 340 / 387.1
.~ Weatherproofing
Current as of:
June, 1999
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340 /
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COMMUNICATIONS: ELECTRICAL
384.1
DF
AUDIBLE INDICATION
{11}
387.1
.~ Weatherproofing
DEFINITION
Classification: 340/387.1
Weatherproofing:
(under subclass 384.1) Subject matter provided with means for
inclosing the audible signalling device to protect it from moisture, insects, or other unwanted substances.
(1) Note. Watertight housing, sealed casing, etc., are included in this subclass.
SEE OR SEARCH CLASS
219, Electric Heating,
209, combined with a diverse-type electrical art device.