FR741772A - - Google Patents
Info
- Publication number
- FR741772A FR741772A FR741772DA FR741772A FR 741772 A FR741772 A FR 741772A FR 741772D A FR741772D A FR 741772DA FR 741772 A FR741772 A FR 741772A
- Authority
- FR
- France
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR741772A true FR741772A (zh) | 1933-02-18 |
Family
ID=1546265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR741772D Expired FR741772A (zh) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR741772A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895779A1 (fr) * | 2005-12-30 | 2007-07-06 | Obsta Snc | Dispositif de signalisation lumineux |
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0
- FR FR741772D patent/FR741772A/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895779A1 (fr) * | 2005-12-30 | 2007-07-06 | Obsta Snc | Dispositif de signalisation lumineux |
| WO2007077364A1 (fr) * | 2005-12-30 | 2007-07-12 | Obsta | Dispositif de signalisation lumineux |
| US7816843B2 (en) | 2005-12-30 | 2010-10-19 | Obsta | Light signaling device |