| Number | Name | Date | Kind |
|---|---|---|---|
| 1706388 | Ashkenas | Mar 1929 | |
| 2210652 | Dennett | Aug 1940 | |
| 3187761 | De Maio | Jun 1965 | |
| 3220464 | Wise | Nov 1965 | |
| 3425171 | Propst et al. | Feb 1969 | |
| 3592289 | Aysta | Jul 1971 | |
| 3596701 | Cowan | Aug 1971 | |
| 3659389 | Forberg | May 1972 | |
| 3889736 | Firks | Jun 1975 | |
| 3987838 | LaGue et al. | Oct 1976 | |
| 4047342 | Boulva | Sep 1977 | |
| 4070006 | Storie | Jan 1978 | |
| 4103465 | McDonald, Jr. | Aug 1978 | |
| 4408430 | Wangler et al. | Oct 1983 | |
| 4601145 | Wilcox | Jul 1986 | |
| 4638614 | Wilcox | Jan 1987 | |
| 4874027 | Boundy et al. | Oct 1989 | |
| 4969500 | Makosa | Nov 1990 | |
| 5050846 | Goodman et a. | Sep 1991 | |
| 5207260 | Commesso | May 1993 | |
| 5213312 | MacDonald | May 1993 | |
| 5272848 | Maas | Dec 1993 | |
| 5339576 | Fussler | Aug 1994 | |
| 5486391 | Tyner | Jan 1996 | |
| 5502930 | Burkette et al. | Apr 1996 | |
| 5689926 | Nichols | Nov 1997 | |
| 5758868 | Shea | Jun 1998 |
| Entry |
|---|
| Portable Privacy Station brochure, Blood Systems, Inc., (3 pages). |
| The Right Carpet Backing brochure, Colback (3 pages). |
| Ball & Spring Plungers article, Design Standards (1 page). |
| The Elasticity of Rubber article, Isao Hosoe, 1984 (1 page). |