by mechanism in rotating centre post, e.g. permitting the playing of both sides of a record

Full Title

Guiding record carriers not specifically of filamentary or web form, or of supports therefor > from consecutive-access magazine of disc records > with axial transfer to the turntable from a stack with a vertical axis > by mechanism in rotating centre post, e.g. permitting the playing of both sides of a record

Classification Context

Section:

PHYSICS

Class:

INFORMATION STORAGE

Subclass:

INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER