Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886837 | Process for preparing rigid polyvinyl chloride stractured foams having superior surface characteristics | Byoung-Chul Kim, Soon Man Hong | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886837 | Process for preparing rigid polyvinyl chloride stractured foams having superior surface characteristics | Byoung-Chul Kim, Soon Man Hong | 1989-12-12 |