DK28530C - Headphone. - Google Patents

Headphone.

Info

Publication number
DK28530C
DK28530C DK28530DA DK28530C DK 28530 C DK28530 C DK 28530C DK 28530D A DK28530D A DK 28530DA DK 28530 C DK28530 C DK 28530C
Authority
DK
Denmark
Prior art keywords
headphone
Prior art date
Application number
Other languages
Danish (da)
Inventor
Erich Hausdorf
Original Assignee
Erich Hausdorf
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 Erich Hausdorf filed Critical Erich Hausdorf
Application granted granted Critical
Publication of DK28530C publication Critical patent/DK28530C/en

Links

DK28530D 1919-04-28 1919-04-28 Headphone. DK28530C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK28530T 1919-04-28

Publications (1)

Publication Number Publication Date
DK28530C true DK28530C (en) 1921-09-26

Family

ID=8116428

Family Applications (1)

Application Number Title Priority Date Filing Date
DK28530D DK28530C (en) 1919-04-28 1919-04-28 Headphone.

Country Status (1)

Country Link
DK (1) DK28530C (en)

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