GB190118399A - Improvements in Phonographs, Graphophones and the like Sound Recording Instruments. - Google Patents

Improvements in Phonographs, Graphophones and the like Sound Recording Instruments.

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Publication number
GB190118399A
GB190118399A GB190118399DA GB190118399A GB 190118399 A GB190118399 A GB 190118399A GB 190118399D A GB190118399D A GB 190118399DA GB 190118399 A GB190118399 A GB 190118399A
Authority
GB
United Kingdom
Prior art keywords
graphophones
phonographs
sound recording
recording instruments
trumpets
Prior art date
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
Thomas Goulding Mc Ilvride
Edmund Ridings
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190118399A publication Critical patent/GB190118399A/en
Expired legal-status Critical Current

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Abstract

18,399. McIlvride, T. G., and Ridings, E. Sept.14. Phonographs, graphophones, &c. are provided with sound trumpets formed with conical sections a. When the trumpets are to be varied in length, different sizes of bell mouths b may be employed, the larger sections and bell mouths being discarded as desired.
GB190118399D 1901-09-14 1901-09-14 Improvements in Phonographs, Graphophones and the like Sound Recording Instruments. Expired GB190118399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190118399T 1901-09-14

Publications (1)

Publication Number Publication Date
GB190118399A true GB190118399A (en) 1902-08-07

Family

ID=32151931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190118399D Expired GB190118399A (en) 1901-09-14 1901-09-14 Improvements in Phonographs, Graphophones and the like Sound Recording Instruments.

Country Status (1)

Country Link
GB (1) GB190118399A (en)

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