FR511559A - Projector - Google Patents
ProjectorInfo
- Publication number
- FR511559A FR511559A FR511559A FR511559DA FR511559A FR 511559 A FR511559 A FR 511559A FR 511559 A FR511559 A FR 511559A FR 511559D A FR511559D A FR 511559DA FR 511559 A FR511559 A FR 511559A
- Authority
- FR
- France
- Prior art keywords
- projector
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/02—Details
- H05B31/06—Electrodes
- H05B31/08—Carbon electrodes
- H05B31/10—Cored carbon electrodes
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE140799X | 1917-08-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR511559A true FR511559A (en) | 1920-12-29 |
Family
ID=5668382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR511559A Expired FR511559A (en) | 1917-08-01 | 1920-03-13 | Projector |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT88543B (en) |
FR (1) | FR511559A (en) |
GB (1) | GB140799A (en) |
-
1918
- 1918-07-18 AT AT88543D patent/AT88543B/en active
-
1920
- 1920-03-13 FR FR511559A patent/FR511559A/en not_active Expired
- 1920-03-25 GB GB8801/20A patent/GB140799A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
AT88543B (en) | 1922-05-26 |
GB140799A (en) | 1920-11-11 |
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