| Number | Name | Date | Kind |
|---|---|---|---|
| 1432132 | Sturges | Oct 1922 | |
| 2763381 | Bowles | Sep 1956 | |
| 2908946 | Sullivan | Oct 1959 | |
| 2936083 | Dahlman | May 1960 | |
| 3290837 | Weston | Dec 1966 | |
| 3562984 | Merle | Feb 1971 | |
| 3824752 | Weston | Jul 1974 | |
| 4424651 | Lee et al. | Jan 1984 | |
| 4752876 | Couch et al. | Jun 1988 | |
| 4971505 | Sawyer | Nov 1990 | |
| 5463546 | Parkhurst | Oct 1995 | |
| 5614703 | Martin et al. | Mar 1997 | |
| 5749186 | Kaufman et al. | May 1998 | |
| 5850753 | Varma | Dec 1998 | |
| 5979754 | Martin et al. | Nov 1999 |
| Number | Date | Country |
|---|---|---|
| 0410008A1 | Jan 1991 | EP |
| 6240937 | Aug 1994 | JP |
| 6236488 | Aug 1994 | JP |
| Entry |
|---|
| Progressive Architecture, vol. XL, Issue #6, p. 80, Published Jun., 1959, “Park-Near-Your-Room To Be Feature Of San Francisco Hotel”. |