| Number | Name | Date | Kind |
|---|---|---|---|
| RE28503 | Townsend et al. | Aug 1975 | |
| 2949300 | Huck et al. | Aug 1960 | |
| 3219345 | Rogers | Nov 1965 | |
| 3314678 | Conklin et al. | Apr 1967 | |
| 3582071 | Grosvenor et al. | Jun 1971 | |
| 3715480 | Levine | Feb 1973 | |
| 3907290 | Fischer et al. | Sep 1975 | |
| 4025718 | Paretti | May 1977 | |
| 4092727 | Warner | May 1978 | |
| 4131948 | Kaenel | Dec 1978 | |
| 4168510 | Kaiser | Sep 1979 | |
| 4179704 | Moore et al. | Dec 1979 | |
| 4214263 | Kaiser | Jul 1980 | |
| 4218703 | Netravali et al. | Aug 1980 | |
| 4220967 | Ichida et al. | Sep 1980 | |
| 4270143 | Morris | May 1981 | |
| 4302010 | Kaenel | Nov 1981 | |
| 4538993 | Krumholz | Sep 1985 | |
| 4626891 | Achiha | Dec 1986 | |
| 4630114 | Bergmann et al. | Dec 1986 | |
| 4661846 | Kondo | Apr 1987 | |
| 4715818 | Shapiro et al. | Dec 1987 | |
| 4722053 | Dubno et al. | Jan 1988 | |
| 4759717 | Larochelle et al. | Jul 1988 | |
| 4887813 | Chiles, III et al. | Dec 1989 |
| Entry |
|---|
| "First Stage Market Test of Brunswick's New Bowling System", Apr. 1986. |