JPH0286789U - - Google Patents
Info
- Publication number
- JPH0286789U JPH0286789U JP16633488U JP16633488U JPH0286789U JP H0286789 U JPH0286789 U JP H0286789U JP 16633488 U JP16633488 U JP 16633488U JP 16633488 U JP16633488 U JP 16633488U JP H0286789 U JPH0286789 U JP H0286789U
- Authority
- JP
- Japan
- Prior art keywords
- blackboard
- damping material
- face plate
- metal face
- plywood backing
- 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
- 238000013016 damping Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000011120 plywood Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16633488U JPH0286789U (it) | 1988-12-23 | 1988-12-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16633488U JPH0286789U (it) | 1988-12-23 | 1988-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0286789U true JPH0286789U (it) | 1990-07-10 |
Family
ID=31453623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16633488U Pending JPH0286789U (it) | 1988-12-23 | 1988-12-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0286789U (it) |
-
1988
- 1988-12-23 JP JP16633488U patent/JPH0286789U/ja active Pending