NL183C - Telefoonoverdrager - Google Patents
TelefoonoverdragerInfo
- Publication number
- NL183C NL183C NL431A NL431A NL183C NL 183 C NL183 C NL 183C NL 431 A NL431 A NL 431A NL 431 A NL431 A NL 431A NL 183 C NL183 C NL 183C
- Authority
- NL
- Netherlands
- Prior art keywords
- porter
- telephone
- telephone porter
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL431A NL183C (nl) | 1912-06-14 | 1912-06-14 | Telefoonoverdrager |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL431A NL183C (nl) | 1912-06-14 | 1912-06-14 | Telefoonoverdrager |
Publications (1)
Publication Number | Publication Date |
---|---|
NL183C true NL183C (nl) | 1914-04-15 |
Family
ID=1771552
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL431A NL183C (nl) | 1912-06-14 | 1912-06-14 | Telefoonoverdrager |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL183C (nl) |
-
1912
- 1912-06-14 NL NL431A patent/NL183C/nl active
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