FR655624A - Alarm device to prevent gas poisoning - Google Patents
Alarm device to prevent gas poisoningInfo
- Publication number
- FR655624A FR655624A FR655624DA FR655624A FR 655624 A FR655624 A FR 655624A FR 655624D A FR655624D A FR 655624DA FR 655624 A FR655624 A FR 655624A
- Authority
- FR
- France
- Prior art keywords
- alarm device
- prevent gas
- gas poisoning
- poisoning
- prevent
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE655624X | 1927-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR655624A true FR655624A (en) | 1929-04-22 |
Family
ID=20314165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR655624D Expired FR655624A (en) | 1927-06-11 | 1928-06-11 | Alarm device to prevent gas poisoning |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR655624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530155A (en) * | 1949-11-25 | 1950-11-14 | Luca Albert De | Tone amplifier for musical instruments |
-
1928
- 1928-06-11 FR FR655624D patent/FR655624A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530155A (en) * | 1949-11-25 | 1950-11-14 | Luca Albert De | Tone amplifier for musical instruments |
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