CH72892A - Thermal telephone - Google Patents

Thermal telephone

Info

Publication number
CH72892A
CH72892A CH72892A CH72892DA CH72892A CH 72892 A CH72892 A CH 72892A CH 72892 A CH72892 A CH 72892A CH 72892D A CH72892D A CH 72892DA CH 72892 A CH72892 A CH 72892A
Authority
CH
Switzerland
Prior art keywords
telephone
thermal
thermal telephone
Prior art date
Application number
CH72892A
Other languages
German (de)
Inventor
Naamlooze Vennoot Maatschappij
Original Assignee
De Nl Thermo Telephoon Mij Nv
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 De Nl Thermo Telephoon Mij Nv filed Critical De Nl Thermo Telephoon Mij Nv
Publication of CH72892A publication Critical patent/CH72892A/en

Links

CH72892A 1916-04-03 1916-04-03 Thermal telephone CH72892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH72892T 1916-04-03

Publications (1)

Publication Number Publication Date
CH72892A true CH72892A (en) 1916-07-17

Family

ID=4322790

Family Applications (1)

Application Number Title Priority Date Filing Date
CH72892A CH72892A (en) 1916-04-03 1916-04-03 Thermal telephone

Country Status (1)

Country Link
CH (1) CH72892A (en)

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