Phonautograph
Legal definition for Indian law research
Definition
An instrument by means of which a sound can be made to produce a visible trace or record of itself It consists essentially of a resonant vessel usually of paraboloidal form closed at one end by a flexible membrane A stylus attached to some point of the membrane records the movements of the latter as it vibrates upon a moving cylinder or plate
Definitions are for legal research. Always verify meaning in the context of the statute, judgment, or jurisdiction cited.