CH14384A - Kohlenkörner-Mikrophon - Google Patents
Kohlenkörner-MikrophonInfo
- Publication number
- CH14384A CH14384A CH14384A CH14384DA CH14384A CH 14384 A CH14384 A CH 14384A CH 14384 A CH14384 A CH 14384A CH 14384D A CH14384D A CH 14384DA CH 14384 A CH14384 A CH 14384A
- Authority
- CH
- Switzerland
- Prior art keywords
- coal grain
- microphone
- grain microphone
- coal
- grain
- Prior art date
Links
- 239000003245 coal Substances 0.000 title 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH14384T | 1897-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH14384A true CH14384A (de) | 1897-11-30 |
Family
ID=4210455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH14384A CH14384A (de) | 1897-05-22 | 1897-05-22 | Kohlenkörner-Mikrophon |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH14384A (de) |
-
1897
- 1897-05-22 CH CH14384A patent/CH14384A/de unknown
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