DE297449C - - Google Patents
Info
- Publication number
- DE297449C DE297449C DENDAT297449D DE297449DA DE297449C DE 297449 C DE297449 C DE 297449C DE NDAT297449 D DENDAT297449 D DE NDAT297449D DE 297449D A DE297449D A DE 297449DA DE 297449 C DE297449 C DE 297449C
- Authority
- DE
- Germany
- Prior art keywords
- insert body
- sound
- thermal
- heat conductor
- effect
- 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
- 239000004020 conductor Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 6
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE191505846X | 1915-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE297449C true DE297449C (enExample) |
Family
ID=32668501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT297449D Active DE297449C (enExample) | 1915-03-17 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE297449C (enExample) |
| GB (1) | GB191505846A (enExample) |
| NL (1) | NL4053C (enExample) |
-
0
- DE DENDAT297449D patent/DE297449C/de active Active
- NL NL4053D patent/NL4053C/xx active
-
1915
- 1915-04-19 GB GB191505846D patent/GB191505846A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB191505846A (en) | 1916-04-19 |
| NL4053C (enExample) |
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