Number | Date | Country | Kind |
---|---|---|---|
03 3 17052 | Jun 2003 | CN |
Number | Name | Date | Kind |
---|---|---|---|
1714827 | Torka et al. | May 1929 | A |
3132548 | Zimmerman | May 1964 | A |
3816864 | Cotter | Jun 1974 | A |
4276675 | Pioch | Jul 1981 | A |
4381579 | Rumpp | May 1983 | A |
D308810 | Murawski | Jun 1990 | S |
D320918 | Mochida | Oct 1991 | S |
D337712 | Cavedo | Jul 1993 | S |
D431766 | Zurwelle | Oct 2000 | S |
Entry |
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Kress Brochure, 1987, front cover, drill with auxillary handle. |