FR655651A - - Google Patents
Info
- Publication number
- FR655651A FR655651A FR655651DA FR655651A FR 655651 A FR655651 A FR 655651A FR 655651D A FR655651D A FR 655651DA FR 655651 A FR655651 A FR 655651A
- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/20—Lighting for medical use
- F21W2131/205—Lighting for medical use for operating theatres
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR655651A true FR655651A (xx) | 1929-04-23 |
Family
ID=1543060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR655651D Expired FR655651A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR655651A (xx) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2590191A (en) * | 1948-03-27 | 1952-03-25 | Holephane Company Inc | Surgical lighting |
| FR2201426A1 (xx) * | 1972-10-02 | 1974-04-26 | Physical Systems |
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0
- FR FR655651D patent/FR655651A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2590191A (en) * | 1948-03-27 | 1952-03-25 | Holephane Company Inc | Surgical lighting |
| FR2201426A1 (xx) * | 1972-10-02 | 1974-04-26 | Physical Systems |