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
GB3389120A
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.)
REGINALD FRANK ROBERT AMOR
Original Assignee
REGINALD FRANK ROBERT AMOR
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 REGINALD FRANK ROBERT AMORfiledCriticalREGINALD FRANK ROBERT AMOR
Priority to GB3389120ApriorityCriticalpatent/GB175453A/en
Publication of GB175453ApublicationCriticalpatent/GB175453A/en
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
Landscapes
Obtaining Desirable Characteristics In Audible-Bandwidth Transducers
(AREA)
Abstract
175,453. Amor, R. F. R. Dec. 1, 1920. Sound magnifying and directing appliances.- In portable gramophones in which the sound reflector d is hinged to a casing, the horn e is passed through the lower side of the reflector.
GB3389120A1920-12-011920-12-01Improvements in and relating to gramophones and the like and cases for the same
ExpiredGB175453A
(en)