US PATENT SUBCLASS 73 / 576
.~.~ Device having an electromagnetic drive
Current as of:
June, 1999
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MEASURING AND TESTING
570
DF
VIBRATION
{10}
574
DF
.~ Mechanical impedance {2}
576
.~.~ Device having an electromagnetic drive
DEFINITION
Classification: 73/576
Device having an electromagnetic drive:
(under subclass 574) Subject matter wherein the body or body supporting unit is vibrated by direct application of electromagnetic action thereto.