FR631463A - Mine lamp - Google Patents
Mine lampInfo
- Publication number
- FR631463A FR631463A FR631463DA FR631463A FR 631463 A FR631463 A FR 631463A FR 631463D A FR631463D A FR 631463DA FR 631463 A FR631463 A FR 631463A
- Authority
- FR
- France
- Prior art keywords
- mine lamp
- mine
- lamp
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR631463T | 1927-03-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR631463A true FR631463A (en) | 1927-12-21 |
Family
ID=8991777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR631463D Expired FR631463A (en) | 1927-03-26 | 1927-03-26 | Mine lamp |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR631463A (en) |
-
1927
- 1927-03-26 FR FR631463D patent/FR631463A/en not_active Expired
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