DE281139C - - Google Patents
Info
- Publication number
- DE281139C DE281139C DENDAT281139D DE281139DA DE281139C DE 281139 C DE281139 C DE 281139C DE NDAT281139 D DENDAT281139 D DE NDAT281139D DE 281139D A DE281139D A DE 281139DA DE 281139 C DE281139 C DE 281139C
- Authority
- DE
- Germany
- Prior art keywords
- frame
- microtelephone
- microtelephones
- user
- microphone
- 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
- 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
- H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Casings For Electric Apparatus (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE281139C true DE281139C (enrdf_load_stackoverflow) |
Family
ID=536904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT281139D Active DE281139C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE281139C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT281139D patent/DE281139C/de active Active
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