CH78729A - Device for the phonographic recording and reproduction of conversations transmitted by telephone - Google Patents

Device for the phonographic recording and reproduction of conversations transmitted by telephone

Info

Publication number
CH78729A
CH78729A CH78729A CH78729DA CH78729A CH 78729 A CH78729 A CH 78729A CH 78729 A CH78729 A CH 78729A CH 78729D A CH78729D A CH 78729DA CH 78729 A CH78729 A CH 78729A
Authority
CH
Switzerland
Prior art keywords
reproduction
telephone
phonographic recording
conversations
transmitted
Prior art date
Application number
CH78729A
Other languages
German (de)
Inventor
Franz Seelau
M Newman
Original Assignee
Franz Seelau
M Newman
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 Franz Seelau, M Newman filed Critical Franz Seelau
Publication of CH78729A publication Critical patent/CH78729A/en

Links

CH78729A 1916-12-21 1916-12-21 Device for the phonographic recording and reproduction of conversations transmitted by telephone CH78729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH78729T 1916-12-21

Publications (1)

Publication Number Publication Date
CH78729A true CH78729A (en) 1918-09-02

Family

ID=4331687

Family Applications (1)

Application Number Title Priority Date Filing Date
CH78729A CH78729A (en) 1916-12-21 1916-12-21 Device for the phonographic recording and reproduction of conversations transmitted by telephone

Country Status (1)

Country Link
CH (1) CH78729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578866A (en) * 1948-12-23 1951-12-18 Admiral Corp Plural needle pickup apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578866A (en) * 1948-12-23 1951-12-18 Admiral Corp Plural needle pickup apparatus

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