DE118460C - - Google Patents
Info
- Publication number
- DE118460C DE118460C DENDAT118460D DE118460DA DE118460C DE 118460 C DE118460 C DE 118460C DE NDAT118460 D DENDAT118460 D DE NDAT118460D DE 118460D A DE118460D A DE 118460DA DE 118460 C DE118460 C DE 118460C
- Authority
- DE
- Germany
- Prior art keywords
- record
- container
- grains
- grain
- flexible material
- 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
- 239000000463 material Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 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
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
- H04R21/021—Microphones with granular resistance material
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE118460C true DE118460C (OSRAM) |
Family
ID=387655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT118460D Active DE118460C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE118460C (OSRAM) |
-
0
- DE DENDAT118460D patent/DE118460C/de active Active
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