NL28895C - - Google Patents

Info

Publication number: NL28895C
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.)

1927-08-13

Publication of NL28895C publication Critical patent/NL28895C/xx

Classifications

- 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)

NL28895D 1927-08-13 NL28895C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE658865X		1927-08-13

Publications (1)

Publication Number	Publication Date
NL28895C true NL28895C (enrdf_load_stackoverflow)

Family

ID=6582580

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL28895D NL28895C (enrdf_load_stackoverflow)	1927-08-13

Country Status (2)

Country	Link
FR (1)	FR658865A (enrdf_load_stackoverflow)
NL (1)	NL28895C (enrdf_load_stackoverflow)

0
- NL NL28895D patent/NL28895C/xx active
1928
- 1928-08-10 FR FR658865D patent/FR658865A/fr not_active Expired

Also Published As

Publication number	Publication date
FR658865A (fr)	1929-06-21

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