NL2305C - - Google Patents
Info
Publication number
NL2305C
NL2305C
NL2305DA
NL2305C
NL 2305 C
NL2305 C
NL 2305C
NL 2305D A
NL2305D A
NL 2305DA
NL 2305 C
NL2305 C
NL 2305C
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.)
1911-05-25
Publication of NL2305C
publication
Critical
patent/NL2305C/xx
Links
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 )
Interconnected Communication Systems, Intercoms, And Interphones
(AREA )
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US443965XA
1911-05-25
1911-05-25
Publications (1)
Publication Number
Publication Date
NL2305C
true
NL2305C
(2 )
Family
ID=6012975
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
NL2305D
NL2305C
(2 )
1911-05-25
Country Status (3)