| Number | Name | Date | Kind |
|---|---|---|---|
| D. 215407 | Hackerman et al. | Sep 1969 | |
| D. 223134 | Bunyes | Mar 1972 | |
| D. 327829 | Mochida | Jul 1992 | |
| 3352368 | Maffey, Jr. | Nov 1967 | |
| 4063601 | Blek | Dec 1977 |
| Entry |
|---|
| P. 81 of Design Catalog “Industrial Professional Tools and Equipment”, received by Japanese Patent Office on Sep. 16, 1997, entitled Portable Impact Wrench. |