Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9649869 | Bookbinding by inserting a helical plastic coil into the aligned holes at the edge of the book | Walter D. Klassen | 2017-05-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9649869 | Bookbinding by inserting a helical plastic coil into the aligned holes at the edge of the book | Walter D. Klassen | 2017-05-16 |