| Number | Name | Date | Kind |
|---|---|---|---|
| D170961 | Blish | Dec 1953 | |
| 172195 | Spring | Jan 1876 | |
| 297375 | Freund | Apr 1884 | |
| 311642 | MacDonald | Oct 1885 | |
| D311980 | Baker | Nov 1990 | |
| 313414 | Freund | Mar 1885 | |
| D357051 | Strenkowski | Apr 1995 | |
| 358312 | Weck | Feb 1887 | |
| D381487 | Sweeney | Jul 1997 | |
| 580235 | Strum | Apr 1897 | |
| 591459 | Dell | Jan 1897 | |
| 597345 | Welsh | Jan 1898 | |
| 614537 | Dahlquist | Nov 1898 | |
| 1268558 | Faix | Jun 1918 | |
| 1440014 | Kallio | Dec 1922 | |
| 1454994 | Matteo | May 1923 | |
| 1561262 | Blackstun | Nov 1925 | |
| 2742698 | McGary et al. | Apr 1956 | |
| 2924879 | Kraus, Jr. | Feb 1960 | |
| 4233737 | Poehlmann | Nov 1980 | |
| 4324121 | Richter | Apr 1982 | |
| 4451982 | Collins | Jun 1984 | |
| 4570341 | Konneker | Feb 1986 | |
| 4637084 | Wood | Jan 1987 | |
| 4926554 | Martin | May 1990 | |
| 5014379 | Hull et al. | May 1991 | |
| 5062173 | Collins et al. | Nov 1991 | |
| 5077850 | Brubaker | Jan 1992 | |
| 5093995 | Jan | Mar 1992 | |
| 5119520 | Finn | Jun 1992 | |
| 5279021 | Edgin | Jan 1994 | |
| 5528831 | Fortenberry | Jun 1996 |
| Entry |
|---|
| BLADE, Sep. 1997, p. 95. On information and belief, the tool shown in the Ed Halligan advertisement was offered for sale prior to the filing date (6/12/97) of the present application. |