DK75438C - Telefonapparat med sidetonedæmpning til centralbatteridrift. - Google Patents

Telefonapparat med sidetonedæmpning til centralbatteridrift.

Info

Publication number
DK75438C
DK75438C DK187248A DK187248A DK75438C DK 75438 C DK75438 C DK 75438C DK 187248 A DK187248 A DK 187248A DK 187248 A DK187248 A DK 187248A DK 75438 C DK75438 C DK 75438C
Authority
DK
Denmark
Prior art keywords
telephone set
battery operation
side tone
central battery
tone attenuation
Prior art date
Application number
DK187248A
Other languages
English (en)
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Application granted granted Critical
Publication of DK75438C publication Critical patent/DK75438C/da

Links

DK187248A 1947-06-14 1948-06-09 Telefonapparat med sidetonedæmpning til centralbatteridrift. DK75438C (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH75438X 1947-06-14

Publications (1)

Publication Number Publication Date
DK75438C true DK75438C (da) 1953-02-16

Family

ID=4326793

Family Applications (1)

Application Number Title Priority Date Filing Date
DK187248A DK75438C (da) 1947-06-14 1948-06-09 Telefonapparat med sidetonedæmpning til centralbatteridrift.

Country Status (1)

Country Link
DK (1) DK75438C (da)

Similar Documents

Publication Publication Date Title
CH268017A (fr) Raccord.
NL142752B (nl) Graafmachine.
CH276285A (de) Teilnehmer-Telephonapparatstromkreis.
CH273847A (de) Verbrennungsvorrichtung.
CH261156A (de) Elektroakustischer Wandler.
DK75438C (da) Telefonapparat med sidetonedæmpning til centralbatteridrift.
CH273848A (de) Verbrennungsvorrichtung.
CH269815A (fr) Stylographe.
CH259180A (de) Motorsäge.
CH265060A (fr) Transducteur.
CH260208A (de) Wechselsprechanlage.
DK72130C (da) Telefonboks.
CH269948A (de) Fernsprechapparat mit Rückhördämpfung.
ES14800Y (es) Micro-teléfono.
ES14540Y (es) Auricular suplementario.
DK67406C (da) Apparat til Opbevaring af Gær.
FR57897E (fr) Installation téléphonique
FR1054751A (fr) Radiotéléphone service
ES14386Y (es) Aparato tapaorejas.
ES15350Y (es) Teléfono juguete.
GR11383B (el) Τυπος σωσιβιου.
DK71515C (da) Apparat til telefonisk alarmering til forud indstillede telefonnumre.
GR11230B (el) Συπτισσομενος φορητον καθισμα.
ES14278Y (es) Bisagra.
ES16369Y (es) Bisagra.