| 1/00 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency |
| 1/02 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy (B06B 1/18, B06B 1/2 take precedence) |
| 1/04 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy (B06B 1/18, B06B 1/2 take precedence) operating with electromagnetism (dynamo-electric motors with vibrating magnet, armature or coil system H02K 33/00) |
| 1/06 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy (B06B 1/18, B06B 1/2 take precedence) operating with piezo-electric effect or with electrostriction (piezo-electric or electrostrictive elements in general H01L 41/00) |
| 1/08 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy (B06B 1/18, B06B 1/2 take precedence) operating with magnetostriction (magnetostrictive elements in general H01L 41/00) |
| 1/10 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy (B06B 1/18, B06B 1/2 take precedence) |
| 1/12 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy (B06B 1/18, B06B 1/2 take precedence) operating with systems involving reciprocating masses |
| 1/14 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy (B06B 1/18, B06B 1/2 take precedence) operating with systems involving reciprocating masses the masses being elastically coupled |
| 1/16 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of mechanical energy (B06B 1/18, B06B 1/2 take precedence) operating with systems involving rotary unbalanced masses |
| 1/18 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency wherein the vibrator is actuated by pressure fluid (B06B 1/2 takes precedence) |
| 1/20 | Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of a vibrating fluid |
| 3/00 | Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency |
| 3/02 | Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency involving a change of amplitude |
| 3/04 | Processes or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic or ultrasonic frequency involving focusing or reflecting |