US220628A - Improvement in car-ventilators - Google Patents
Improvement in car-ventilators Download PDFInfo
- Publication number
- US220628A US220628A US220628DA US220628A US 220628 A US220628 A US 220628A US 220628D A US220628D A US 220628DA US 220628 A US220628 A US 220628A
- Authority
- US
- United States
- Prior art keywords
- ventilators
- car
- improvement
- ventilatot
- luoas
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/009—Means for ventilating only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Treating Waste Gases (AREA)
Description
0. LUOAS. oar-ventilatot.
No. 220,628- Patented oct. I4, l879.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US220628A true US220628A (en) | 1879-10-14 |
Family
ID=2290028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US220628D Expired - Lifetime US220628A (en) | Improvement in car-ventilators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US220628A (en) |
-
0
- US US220628D patent/US220628A/en not_active Expired - Lifetime
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