DK21902C - Device for Diaphragms for Speakerphone. - Google Patents

Device for Diaphragms for Speakerphone.

Info

Publication number
DK21902C
DK21902C DK21902DA DK21902C DK 21902 C DK21902 C DK 21902C DK 21902D A DK21902D A DK 21902DA DK 21902 C DK21902 C DK 21902C
Authority
DK
Denmark
Prior art keywords
speakerphone
diaphragms
Prior art date
Application number
Other languages
Danish (da)
Inventor
Eric Magnus Campbel Tigerstedt
Original Assignee
Eric Magnus Campbel Tigerstedt
Publication date
Application granted granted Critical
Publication of DK21902C publication Critical patent/DK21902C/en

Links

DK21902D Device for Diaphragms for Speakerphone. DK21902C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK21420T

Publications (1)

Publication Number Publication Date
DK21902C true DK21902C (en) 1917-02-12

Family

ID=27836519

Family Applications (1)

Application Number Title Priority Date Filing Date
DK21902D DK21902C (en) Device for Diaphragms for Speakerphone.

Country Status (1)

Country Link
DK (1) DK21902C (en)

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