Signals on record carriers or on containers and recorded by the same method as the main recording

Full Title

Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus > with provision for auxiliary signals > Signals on record carriers or on containers and recorded by the same method as the main recording

Classification Context

Section:

PHYSICS

Class:

INFORMATION STORAGE

Subclass:

INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER