FR971886A - Téléphonie, télégraphie, repérage par sources éclair - Google Patents
Téléphonie, télégraphie, repérage par sources éclairInfo
- Publication number
- FR971886A FR971886A FR971886DA FR971886A FR 971886 A FR971886 A FR 971886A FR 971886D A FR971886D A FR 971886DA FR 971886 A FR971886 A FR 971886A
- Authority
- FR
- France
- Prior art keywords
- telegraphy
- telephony
- source tracking
- lightning source
- lightning
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR971886T | 1940-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR971886A true FR971886A (fr) | 1951-01-23 |
Family
ID=9515547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR971886D Expired FR971886A (fr) | 1940-03-23 | 1940-03-23 | Téléphonie, télégraphie, repérage par sources éclair |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR971886A (fr) |
-
1940
- 1940-03-23 FR FR971886D patent/FR971886A/fr not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CH231797A (de) | Fernmeldeapparat. | |
| CH267007A (de) | Fernsprechgerät. | |
| CH269659A (de) | Telegraphenanlage. | |
| CH266210A (de) | Fernmeldekabel. | |
| FR971886A (fr) | Téléphonie, télégraphie, repérage par sources éclair | |
| CH226123A (de) | Wechselstromtelegraphieanlage. | |
| CH225864A (de) | Freileitung. | |
| CH219183A (fr) | Sopporto universale per pezzi da tracciare o da lavorare. | |
| GR9434B (el) | Αντιαεροπορικον αλεξιφωτον. | |
| GR9274B (el) | Φανοι καταιγιδος. | |
| ES5902Y (es) | Filtrosifón, | |
| CH227181A (de) | Lautsprecher. | |
| CH226124A (de) | Wechselstromtelegraphieanlage. | |
| FR940995A (fr) | Systèmes de télécommunication par bureaux centraux | |
| DK71786C (da) | Telefonanlæg. | |
| DK72131C (da) | Telefonsystem. | |
| DK71587C (da) | Telefonsystem. | |
| DK71318C (da) | Lynlyslampe. | |
| DK71378C (da) | Lynlyslampe. | |
| DK61100C (da) | Lynlyslampe. | |
| ES6486Y (es) | Portalámparas. | |
| GR9391B (el) | Ηλεκτρικος φανος τσεπης (λαμπτηρας). | |
| DK58367C (da) | Mikrotelefon. | |
| CH213900A (de) | Bipolar-Elektrolyseur. | |
| CH214162A (de) | Bipolar-Elektrolyseur. |