FR849438A - Automatic door closing - Google Patents
Automatic door closingInfo
- Publication number
- FR849438A FR849438A FR849438DA FR849438A FR 849438 A FR849438 A FR 849438A FR 849438D A FR849438D A FR 849438DA FR 849438 A FR849438 A FR 849438A
- Authority
- FR
- France
- Prior art keywords
- door closing
- automatic door
- closing
- automatic
- door
- 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
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
- G07F17/14—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for fastenings for doors; for turnstiles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR849438T | 1939-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR849438A true FR849438A (en) | 1939-11-23 |
Family
ID=9314718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR849438D Expired FR849438A (en) | 1939-01-26 | 1939-01-26 | Automatic door closing |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR849438A (en) |
-
1939
- 1939-01-26 FR FR849438D patent/FR849438A/en not_active Expired
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