76640061
Jun 3, 2005
Mar 18, 2008
SOUND FILTERING DEVICES FOR INSERTION INTO THE HUMAN EAR, NAMELY, MOULDS AND EAR PLUGS AND PARTS THEREFOR
Electrical and Scientific ApparatusCONSULTING SERVICES AS TO APPARATUS AND EQUIPMENT, ENVIRONMENTAL FACTORS AND PROCEDURES TO BE FOLLOWED, ALL IN THE FIELD OF NOISE MANAGEMENT AND SOUND FILTERING
Computer and Scientific