Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G04C1/02—Winding mechanical clocks electrically by electromagnets
G04C1/022—Winding mechanical clocks electrically by electromagnets with snap-acting armature
G04C1/024—Winding mechanical clocks electrically by electromagnets with snap-acting armature winding-up springs
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01C—RESISTORS
H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
H01C7/042—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient mainly consisting of inorganic non-metallic substances