Patent Grant
D310936
| Number | Date | Country | Kind |
|---|---|---|---|
| 62-36955 | Sep 1987 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D301967 | Sakamoto et al. | Jul 1989 |
| Number | Date | Country |
|---|---|---|
| 660420 | Sep 1985 | JPX |
| Entry |
|---|
| Kango Electric Hammers Catalog, 10/85, p. 3, Model No. 422, "Drilling Hammer". |
| Red Head Flyer, 10/75, Model No. 747, "Anchoring System". |
| HAC New Products, one page, 2/71, top figure, Hilti Hammer Drill, "Model No. TE-17". |
