|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

SEPARATING AND MIXING

|  | B06 |
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL

|  | B06B |
METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC OR ULTRASONIC FREQUENCY FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant sub-classes, e.g. Fulltext... Hierarchy... Expanded...B07B 1/40, Fulltext... Hierarchy... Expanded...B23Q 17/12, Fulltext... Hierarchy... Expanded...B24B 31/06; measurement and analysis of mechanical vibrations Fulltext... Hierarchy... Expanded...G01H; in direction finding, locating, distance or velocity measuring Fulltext... Hierarchy... Expanded...G01S; control of mechanical vibrations in general Fulltext... Hierarchy... Expanded...G05D; sound-producing devices, e.g. bells sirens, whistles, Fulltext... Hierarchy... Expanded...G10K; generation of electrical oscillations Fulltext... Hierarchy... Expanded...H03B; electromechanical resonators in general Fulltext... Hierarchy... Expanded...H03H; electromechanical transducers Fulltext... Hierarchy... Expanded...H04R) [2]