DE188575C - - Google Patents
Info
- Publication number
- DE188575C DE188575C DENDAT188575D DE188575DA DE188575C DE 188575 C DE188575 C DE 188575C DE NDAT188575 D DENDAT188575 D DE NDAT188575D DE 188575D A DE188575D A DE 188575DA DE 188575 C DE188575 C DE 188575C
- Authority
- DE
- Germany
- Prior art keywords
- needle
- membranes
- machine according
- speaking
- membrane
- 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 25
- 230000000694 effects Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/44—Styli, e.g. sapphire, diamond
- G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Reciprocating Pumps (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE188575C true DE188575C (enrdf_load_stackoverflow) |
Family
ID=452185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT188575D Active DE188575C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE188575C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT188575D patent/DE188575C/de active Active
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