Coils, electric; particle accelerators; reflecting discs for wear, for the prevention of traffic accidents; clothing for protection against accidents, irradiation and fire; accumulators, electric, for vehicles; accumulator jars; accumulator boxes; acidimeters for batteries; hydrometers; plates for batteries; whistle alarms; sound alarms; acoustic conduits; speaking tubes; actinometers; adding machines; aerometers; photographic enlarging apparatus; electro-dynamic apparatus for the remote cont...