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
Inventor
Frederick Durize Hall
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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190724932ApublicationCriticalpatent/GB190724932A/en
24,932. Hall, F. D. Nov. 11. Gramophones. - Needles for reproducing sounds in gramophones are made of vegetable fibre, such as bamboo, or of any substance softer than the record disk, and are cut either in triangular or square crosssection. The outside harder portion 18 is utilized for the point of the needle, but some of the softer portion 19 of the fibre is retained. The point of the needle may be cut as shown at 20, 22.
GB190724932D1907-11-111907-11-11Improvements in or relating to Talking or Sound Reproducing Machines
ExpiredGB190724932A
(en)