DE280145C - - Google Patents
Info
- Publication number
- DE280145C DE280145C DENDAT280145D DE280145DA DE280145C DE 280145 C DE280145 C DE 280145C DE NDAT280145 D DENDAT280145 D DE NDAT280145D DE 280145D A DE280145D A DE 280145DA DE 280145 C DE280145 C DE 280145C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- wood pulp
- parchment
- tones
- vegetable
- 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 10
- 229920001131 Pulp (paper) Polymers 0.000 claims description 7
- 235000013311 vegetables Nutrition 0.000 claims description 4
- 240000003085 Quassia amara Species 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005445 natural material 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stringed Musical Instruments (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE280145C true DE280145C (enrdf_load_stackoverflow) |
Family
ID=536005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT280145D Active DE280145C (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE280145C (enrdf_load_stackoverflow) |
-
0
- DE DENDAT280145D patent/DE280145C/de active Active
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