DE314665C - - Google Patents
Info
- Publication number
- DE314665C DE314665C DENDAT314665D DE314665DA DE314665C DE 314665 C DE314665 C DE 314665C DE NDAT314665 D DENDAT314665 D DE NDAT314665D DE 314665D A DE314665D A DE 314665DA DE 314665 C DE314665 C DE 314665C
- Authority
- DE
- Germany
- Prior art keywords
- grain chamber
- pin
- record
- grain
- housing
- 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
- 239000002184 metal Substances 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal 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
- 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)
- Recording Measured Values (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE314665C true DE314665C (enrdf_load_stackoverflow) |
Family
ID=567467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT314665D Active DE314665C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE314665C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT314665D patent/DE314665C/de active Active
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