SE7502124

• Main Author: AUPHAN M J
• Format: Patent
• Language: English
• Published: 02.09.1975
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEDICAL OR VETERINARY SCIENCE; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES; SURGERY; TESTING