| Number | Name | Date | Kind |
|---|---|---|---|
| 2522859 | Carbonneau | Sep 1950 | |
| 2604285 | Knoch | Jul 1952 | |
| 2744584 | Hellon | May 1956 | |
| 3180595 | Brunsting et al. | Apr 1965 | |
| 3327984 | Rennie | Jun 1967 | |
| 3369784 | Whitney | Feb 1968 | |
| 3664615 | Kruger | May 1972 | |
| 3666040 | Junk | May 1972 | |
| 3727004 | Bose | Apr 1973 | |
| 3871606 | Larson | Mar 1975 | |
| 3912865 | Seebinger | Oct 1975 | |
| 4032725 | McGee | Jun 1977 | |
| 4133975 | Barker | Jan 1979 | |
| 4179009 | Birkner | Dec 1979 | |
| 4250540 | Kristofek | Feb 1981 | |
| 4266092 | Barker | May 1981 | |
| 4439643 | Schweizer | Mar 1984 | |
| 4444369 | Job | Apr 1984 | |
| 4546850 | Litner | Oct 1985 | |
| 4614374 | Lannert | Sep 1986 | |
| 4673149 | Grote | Jun 1987 | |
| 4685035 | Nanjoh | Aug 1987 | |
| 4688596 | Liebmann | Aug 1987 | |
| 4727587 | Black | Feb 1988 | |
| 4760510 | Lahti | Jul 1988 | |
| 4778134 | Struthers et al. | Oct 1988 | |
| 4815558 | Krainhofer | Mar 1989 | |
| 4853966 | Skrzycki | Aug 1989 | |
| 4923032 | Nuernberger | May 1990 | |
| 4961226 | Saffran | Oct 1990 | |
| 4993511 | Hiraki | Feb 1991 | |
| 5027403 | Short et al. | Jun 1991 | |
| 5082083 | Draffen | Jan 1992 | |
| 5088574 | Kertesz | Feb 1992 | |
| 5143339 | Ashcraft et al. | Sep 1992 | |
| 5205755 | Douty et al. | Apr 1993 | |
| 5206464 | Lamm | Apr 1993 | |
| 5221069 | Struthers et al. | Jun 1993 | |
| 5236157 | Reggiani | Aug 1993 |
| Entry |
|---|
| Boston Acoustics brochure for Designer Series In-Wall Loudspeaker Systems dated 1991. |