FR530169A - Improvements in sound-reproducing machines - Google Patents

Improvements in sound-reproducing machines

Info

Publication number
FR530169A
FR530169A FR530169DA FR530169A FR 530169 A FR530169 A FR 530169A FR 530169D A FR530169D A FR 530169DA FR 530169 A FR530169 A FR 530169A
Authority
FR
France
Prior art keywords
sound
reproducing machines
reproducing
machines
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
Other languages
French (fr)
Inventor
Geoffrey Maxwel Boumphrey
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 filed Critical
Application granted granted Critical
Publication of FR530169A publication Critical patent/FR530169A/en
Expired legal-status Critical Current

Links

FR530169D 1920-02-12 1921-01-25 Improvements in sound-reproducing machines Expired FR530169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB530169X 1920-02-12

Publications (1)

Publication Number Publication Date
FR530169A true FR530169A (en) 1921-12-17

Family

ID=10466292

Family Applications (1)

Application Number Title Priority Date Filing Date
FR530169D Expired FR530169A (en) 1920-02-12 1921-01-25 Improvements in sound-reproducing machines

Country Status (1)

Country Link
FR (1) FR530169A (en)

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