.~ With electromagnetic field (e.g., dynamometer) {3}
145
.~.~ Solenoid plunger type
DEFINITION
Classification: 324/145
(under subclass 144) Subject matter having a core armature which is attracted by the magnetic field and which moves, under said attraction, along its own axis.
SEE OR SEARCH CLASS
335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,