DE301033C - - Google Patents
Info
- Publication number
- DE301033C DE301033C DENDAT301033D DE301033DA DE301033C DE 301033 C DE301033 C DE 301033C DE NDAT301033 D DENDAT301033 D DE NDAT301033D DE 301033D A DE301033D A DE 301033DA DE 301033 C DE301033 C DE 301033C
- Authority
- DE
- Germany
- Prior art keywords
- switched
- telephone
- telephones
- thermal
- weight
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/06—Hooks; Cradles
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE301033T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE301033C true DE301033C (2) |
Family
ID=6097533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT301033D Active DE301033C (2) |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE301033C (2) |
| GB (1) | GB106962A (2) |
| NL (1) | NL4112C (2) |
-
0
- NL NL4112D patent/NL4112C/xx active
- DE DENDAT301033D patent/DE301033C/de active Active
- GB GB106962D patent/GB106962A/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| GB106962A (2) | |
| NL4112C (2) |
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