DK47498C - Device by Microphones. - Google Patents

Device by Microphones.

Info

Publication number: DK47498C
Authority: DK; Denmark
Prior art keywords: microphones
Prior art date: 1931-12-30

Application number

Other languages

Original Assignee

Ericsson Telefon Ab L M

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.)

1931-12-30

Filing date

1932-12-09

Publication date

1933-07-03

1932-12-09 Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M

1933-07-03 Application granted granted Critical

1933-07-03 Publication of DK47498C publication Critical patent/DK47498C/en

Links

DK47498D 1931-12-30 1932-12-09 Device by Microphones. DK47498C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE47498X		1931-12-30

Publications (1)

Publication Number	Publication Date
DK47498C true DK47498C (en)	1933-07-03

Family

ID=20264886

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK47498D DK47498C (en)	1931-12-30	1932-12-09	Device by Microphones.

Country Status (1)

Country	Link
DK (1)	DK47498C (en)

1932
- 1932-12-09 DK DK47498D patent/DK47498C/en active

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