CH55644A - Protective device for microphones and telephones to prevent the transmission of infectious diseases - Google Patents

Protective device for microphones and telephones to prevent the transmission of infectious diseases

Info

Publication number
CH55644A
CH55644A CH55644A CH55644DA CH55644A CH 55644 A CH55644 A CH 55644A CH 55644 A CH55644 A CH 55644A CH 55644D A CH55644D A CH 55644DA CH 55644 A CH55644 A CH 55644A
Authority
CH
Switzerland
Prior art keywords
microphones
telephones
transmission
prevent
protective device
Prior art date
Application number
CH55644A
Other languages
German (de)
Inventor
A Scharf Joh
Original Assignee
A Scharf Joh
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 A Scharf Joh filed Critical A Scharf Joh
Publication of CH55644A publication Critical patent/CH55644A/en

Links

CH55644A 1911-04-29 1911-04-29 Protective device for microphones and telephones to prevent the transmission of infectious diseases CH55644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH55644T 1911-04-29

Publications (1)

Publication Number Publication Date
CH55644A true CH55644A (en) 1912-09-02

Family

ID=4295683

Family Applications (1)

Application Number Title Priority Date Filing Date
CH55644A CH55644A (en) 1911-04-29 1911-04-29 Protective device for microphones and telephones to prevent the transmission of infectious diseases

Country Status (1)

Country Link
CH (1) CH55644A (en)

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