| Number | Name | Date | Kind |
|---|---|---|---|
| 415773 | Fiske | Nov 1889 | |
| 1086975 | Aaronson | Feb 1914 | |
| 1534353 | Besser | Apr 1925 | |
| 1872522 | Stuckey | Aug 1932 | |
| 2957278 | Woodworth | Oct 1960 | |
| 5078940 | Sayles | Jan 1992 | |
| 5161918 | Hodel | Nov 1992 | |
| 5622456 | Risi et al. | Apr 1997 | |
| 5848511 | Scales | Dec 1998 |
| Number | Date | Country |
|---|---|---|
| 0 289 643 | Nov 1988 | EPX |
| Entry |
|---|
| "Best Stone & Best Stone Boss", Best Block Company brochure, 1-94. |