Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1888129A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemie & Technik J M S GmbH
Original Assignee
Chemie & Technik J M S GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemie & Technik J M S GmbHfiledCriticalChemie & Technik J M S GmbH
Priority to GB1888129ApriorityCriticalpatent/GB335219A/en
Publication of GB335219ApublicationCriticalpatent/GB335219A/en
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
G11B3/66—Erasing information, e.g. for reuse of record carrier
Landscapes
Processing Of Solid Wastes
(AREA)
Artificial Fish Reefs
(AREA)
Abstract
335,219. Chemie & Technik J. M. S. Ges., and Menz, H. June 19, 1929. Addition to 335,194, [Class 22, Cements &c.]. Records.-Gramophone record discs are formed from a composition comprising old gramophone discs composed of shellac and vulcanite, and waste material of the composition claimed in the parent Specification. The old discs are ground, mixed with the waste composition and boiled in bone oil with the addition of spirit.
GB1888129A1929-06-191929-06-19A process of producing discs or sheets for gramophone records and the like
ExpiredGB335219A
(en)