NL4050C - - Google Patents
Info
Publication number
NL4050C
NL4050C
NL4050DA
NL4050C
NL 4050 C
NL4050 C
NL 4050C
NL 4050D A
NL4050D A
NL 4050DA
NL 4050 C
NL4050 C
NL 4050C
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.)
1915-02-08
Publication of NL4050C
publication
Critical
patent/NL4050C/xx
Links
Classifications
H —ELECTRICITY
H04 —ELECTRIC COMMUNICATION TECHNIQUE
H04R —LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
H04R23/00 —Transducers other than those covered by groups H04R9/00 - H04R21/00
H04R23/002 —Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
Physics & Mathematics
(AREA )
Engineering & Computer Science
(AREA )
Acoustics & Sound
(AREA )
Signal Processing
(AREA )
Resistance Heating
(AREA )
Adornments
(AREA )
Diaphragms For Electromechanical Transducers
(AREA )
Connections Effected By Soldering, Adhesion, Or Permanent Deformation
(AREA )
Thermotherapy And Cooling Therapy Devices
(AREA )
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE297246X
1915-02-08
Publications (1)
Publication Number
Publication Date
NL4050C
true
NL4050C
(2 )
Family
ID=32831879
Family Applications (2)
Application Number
Title
Priority Date
Filing Date
NL4050D
NL4050C
(2 )
1915-02-08
NL4793D
NL4793C
(2 )
1915-02-08
Family Applications After (1)
Application Number
Title
Priority Date
Filing Date
NL4793D
NL4793C
(2 )
1915-02-08
Country Status (4)