NL39531C - - Google Patents

Info

Publication number: NL39531C
Authority: NL; Netherlands

Application number

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.)

1930-12-09

Publication of NL39531C publication Critical patent/NL39531C/xx

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/40—Applications of speech amplifiers

Landscapes

Engineering & Computer Science (AREA)
Signal Processing (AREA)
Computer Networks & Wireless Communication (AREA)
Alarm Systems (AREA)

NL39531D 1930-12-09 NL39531C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE620251T		1930-12-09

Publications (1)

Publication Number	Publication Date
NL39531C true NL39531C (enrdf_load_html_response)

Family

ID=34812903

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
NL39531D NL39531C (enrdf_load_html_response)	1930-12-09
NL40819D NL40819C (enrdf_load_html_response)	1930-12-09

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
NL40819D NL40819C (enrdf_load_html_response)	1930-12-09

Country Status (3)

Country	Link
DE (1)	DE620251C (enrdf_load_html_response)
FR (2)	FR727923A (enrdf_load_html_response)
NL (2)	NL40819C (enrdf_load_html_response)

0
- NL NL39531D patent/NL39531C/xx active
- NL NL40819D patent/NL40819C/xx active
1930
- 1930-12-09 DE DE1930620251D patent/DE620251C/de not_active Expired
1931
- 1931-12-07 FR FR727923D patent/FR727923A/fr not_active Expired
1932
- 1932-12-12 FR FR42678D patent/FR42678E/fr not_active Expired

Also Published As

Publication number	Publication date
NL40819C (enrdf_load_html_response)
FR727923A (fr)	1932-06-27
DE620251C (de)	1935-10-17
FR42678E (fr)	1933-09-01

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