335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets, subclass 145 for electromagnetically operated switches, with bimetallic actuating means and having an external heater.
(Electricity: Magnetically Operated Switches, Magnets, and Electromagnets; subclass; 145) Context(Electricity : Magnetically Operated Switches , Magnets , and Electromagnets subclass,List([5, 87))):(Electricity: Magnetically Operated Switches, Magnets, and Electromagnets; subclass 145 having; an external heater)
Electricity
Electricity: Magnetically Operated Switches, Magnets, and Electromagnets Magnetically Operated Switches , Magnets , and Electromagnets subclass,List([5, 87))):(Electricity: Magnetically Operated Switches, Magnets, and Electromagnets
subclass subclass 145 having
145
an external heater