Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1992 | Invention patented by William D. Manske on January 29th, 1992. Abstract: A hunting arrow having a hollow shaft accommodating a sound generator actuated upon impact with a target to aid in finding the arrow. The shaft has one or more slots that function to direct the generated sound. The sound generator includes a piezio electric element and a tone control device that causes the element to emit separate sequential sounds of varying frequencies. An electrical contact mounted on the sound generator maintains continuous electric contact after impact. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
