An anticorrosive agent containing, as essential components, urea or a urea derivative and a hydroxy aromatic compound. A transfer register for the sub sensor array is provided with charge sweep means for sweeping away unnecessary charges. 5 msec or more while blowing a fluidizing gas into the powder at a velocity of about 3. Elongated connectors pass through the loop sections of the modular units to connect the modular units at the connection interface. A receiving device, at the callee location, receives the phone calls, with their associated Caller-ID information and additionally receives personal phone calls, with their associated Caller-ID information.