DE154604C - - Google Patents
Info
- Publication number
- DE154604C DE154604C DENDAT154604D DE154604DA DE154604C DE 154604 C DE154604 C DE 154604C DE NDAT154604 D DENDAT154604 D DE NDAT154604D DE 154604D A DE154604D A DE 154604DA DE 154604 C DE154604 C DE 154604C
- Authority
- DE
- Germany
- Prior art keywords
- microphone
- damper
- housing
- directly
- felt
- 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
- 239000012528 membrane Substances 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 2
- 210000002268 wool Anatomy 0.000 claims description 2
- 238000013016 damping Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE154604C true DE154604C (enExample) |
Family
ID=421134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT154604D Active DE154604C (enExample) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE154604C (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6833481B2 (en) | 2001-11-30 | 2004-12-21 | Takasago International Corporation | Process for producing 2-alkyl-2cyclopentenones |
-
0
- DE DENDAT154604D patent/DE154604C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6833481B2 (en) | 2001-11-30 | 2004-12-21 | Takasago International Corporation | Process for producing 2-alkyl-2cyclopentenones |
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