CH217544A - Episkopische Projektionslampe mit einem rahmenförmigen Glashohlkörper. - Google Patents
Episkopische Projektionslampe mit einem rahmenförmigen Glashohlkörper.Info
- Publication number
- CH217544A CH217544A CH217544DA CH217544A CH 217544 A CH217544 A CH 217544A CH 217544D A CH217544D A CH 217544DA CH 217544 A CH217544 A CH 217544A
- Authority
- CH
- Switzerland
- Prior art keywords
- frame
- hollow glass
- glass body
- shaped hollow
- projection lamp
- Prior art date
Links
- 239000011521 glass Substances 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/28—Envelopes; Vessels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K7/00—Lamps for purposes other than general lighting
- H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE217544X | 1940-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH217544A true CH217544A (de) | 1941-10-31 |
Family
ID=5830806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH217544D CH217544A (de) | 1940-03-15 | 1941-03-10 | Episkopische Projektionslampe mit einem rahmenförmigen Glashohlkörper. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE440884A (instruction) |
| CH (1) | CH217544A (instruction) |
| FR (1) | FR870746A (instruction) |
-
0
- BE BE440884D patent/BE440884A/fr unknown
-
1941
- 1941-03-10 CH CH217544D patent/CH217544A/de unknown
- 1941-03-11 FR FR870746D patent/FR870746A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE440884A (instruction) | |
| FR870746A (fr) | 1942-03-23 |
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