Browsing by Author Sumit Dechasujja
Showing results 1 to 1 of 1
| Issue Date | Title | Author(s) |
|---|---|---|
| 1976 | Helical stair with central angle more then 360 degrees | Sumit Dechasujja |
| Issue Date | Title | Author(s) |
|---|---|---|
| 1976 | Helical stair with central angle more then 360 degrees | Sumit Dechasujja |