FR57738E - Improvements to devices allowing to achieve or interrupt communication between two speakers - Google Patents
Improvements to devices allowing to achieve or interrupt communication between two speakersInfo
- Publication number
- FR57738E FR57738E FR57738DA FR57738E FR 57738 E FR57738 E FR 57738E FR 57738D A FR57738D A FR 57738DA FR 57738 E FR57738 E FR 57738E
- Authority
- FR
- France
- Prior art keywords
- speakers
- achieve
- devices allowing
- interrupt communication
- interrupt
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR57738T | 1947-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR57738E true FR57738E (en) | 1953-05-04 |
Family
ID=8691738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR57738D Expired FR57738E (en) | 1947-10-17 | 1947-10-17 | Improvements to devices allowing to achieve or interrupt communication between two speakers |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR57738E (en) |
-
1947
- 1947-10-17 FR FR57738D patent/FR57738E/en not_active Expired
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