| Number | Name | Date | Kind |
|---|---|---|---|
| 3975105 | Cline | Aug 1976 | |
| 4729688 | Manz | Mar 1988 | |
| 5050736 | Bedol | Oct 1991 | |
| 5209592 | Bedol | May 1993 |
| Entry |
|---|
| McGill, Inc., 2-piece, 3-hole binder punch, (2 photographs). |
| McGill, Inc., plastic base/metal hinge, 3-hole punch (2 photographs). |
| Day Runner, Inc. Pro.TM. holepunch. (2 photographs). |
| Day Runner, Inc. No. 043-112, 6-holepunch (2 photographs). |