VB

ELECTRICALLY-DRIVEN VIBRATORS; VIBRATING UNITS CONSISTING OF ELECTRIC MOTORS, ECCENTRICS DRIVEN BY THE MOTORS AND CLAMP FOR ATTACHING THE UNITS TO MOLDS, CASTING MACHINES, HOPPERS AND OTHER OBJECTS TO VIBRATE THE SAME; ELECTRICALLY DRIVEN SPADES AND TAMPERS FOR VIBRATING UNSET CONCRETE AND COMPACTING MATERIALS; INTERNAL COMBUSTION ENGINE-DRIVEN ELECTRIC GENERATORS; SWITCHES AND TRANSFORMERS