| Number | Name | Date | Kind |
|---|---|---|---|
| 1142796 | Brugman | Jun 1915 | |
| 2324353 | Berry | Jul 1943 | |
| 2573647 | Marke | Oct 1951 | |
| 2878608 | O'Brien, Jr. | Mar 1959 | |
| 3091201 | Gourley, Jr. | May 1963 | |
| 3165856 | Gourley, Jr. | Jan 1965 | |
| 3315400 | Axelson | Apr 1967 | |
| 3769736 | Nydam | Nov 1973 | |
| 3797158 | Immenroth et al. | Mar 1974 | |
| 4011680 | Rienzo, Sr. | Mar 1977 | |
| 4428141 | Kovalorsky | Jan 1984 |
| Entry |
|---|
| Catalog sheet promulgated by AFTCO Mfg. Co., Inc. entitled "New Lightweight Nylatron All-Purpose Roller Guides". |
| Mildrum Manufacturing Company, Catalog sheet entitled "Stand Up! With the New Mildrum RollerFlex". |
| AFTCO Mfg. Co., Inc., Catalog sheet entitled "AFTCO Light-Weight Roller Guides". |