JPS63151503U - - Google Patents
Info
- Publication number
- JPS63151503U JPS63151503U JP4199587U JP4199587U JPS63151503U JP S63151503 U JPS63151503 U JP S63151503U JP 4199587 U JP4199587 U JP 4199587U JP 4199587 U JP4199587 U JP 4199587U JP S63151503 U JPS63151503 U JP S63151503U
- Authority
- JP
- Japan
- Prior art keywords
- sound
- track girder
- absorbing material
- layered
- utility
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Railway Tracks (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199587U JPS63151503U (uk) | 1987-03-24 | 1987-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4199587U JPS63151503U (uk) | 1987-03-24 | 1987-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63151503U true JPS63151503U (uk) | 1988-10-05 |
Family
ID=30857504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4199587U Pending JPS63151503U (uk) | 1987-03-24 | 1987-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63151503U (uk) |
-
1987
- 1987-03-24 JP JP4199587U patent/JPS63151503U/ja active Pending