CH71939A - Sound reproduction apparatus for speaking machines - Google Patents

Sound reproduction apparatus for speaking machines

Info

Publication number
CH71939A
CH71939A CH71939A CH71939DA CH71939A CH 71939 A CH71939 A CH 71939A CH 71939 A CH71939 A CH 71939A CH 71939D A CH71939D A CH 71939DA CH 71939 A CH71939 A CH 71939A
Authority
CH
Switzerland
Prior art keywords
reproduction apparatus
sound reproduction
speaking machines
speaking
machines
Prior art date
Application number
CH71939A
Other languages
French (fr)
Inventor
Hammatt Davis William
Original Assignee
Hammatt Davis William
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 Hammatt Davis William filed Critical Hammatt Davis William
Publication of CH71939A publication Critical patent/CH71939A/en

Links

CH71939A 1914-07-14 1914-07-14 Sound reproduction apparatus for speaking machines CH71939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH71939T 1914-07-14

Publications (1)

Publication Number Publication Date
CH71939A true CH71939A (en) 1916-03-01

Family

ID=4321346

Family Applications (1)

Application Number Title Priority Date Filing Date
CH71939A CH71939A (en) 1914-07-14 1914-07-14 Sound reproduction apparatus for speaking machines

Country Status (1)

Country Link
CH (1) CH71939A (en)

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