FR725990A - Improvements to ventilation devices - Google Patents
Improvements to ventilation devicesInfo
- Publication number
- FR725990A FR725990A FR725990DA FR725990A FR 725990 A FR725990 A FR 725990A FR 725990D A FR725990D A FR 725990DA FR 725990 A FR725990 A FR 725990A
- Authority
- FR
- France
- Prior art keywords
- ventilation devices
- ventilation
- devices
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
- B60H1/26—Ventilating openings in vehicle exterior; Ducts for conveying ventilating air
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US725990XA | 1930-11-19 | 1930-11-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR725990A true FR725990A (en) | 1932-05-20 |
Family
ID=22108641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR725990D Expired FR725990A (en) | 1930-11-19 | 1931-10-16 | Improvements to ventilation devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR725990A (en) |
-
1931
- 1931-10-16 FR FR725990D patent/FR725990A/en not_active Expired
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