Number | Name | Date | Kind |
---|---|---|---|
1571379 | Sharpe | Feb 1926 | |
1807951 | Ahern | Jun 1931 | |
2266216 | Kimberlin | Dec 1941 | |
2574929 | McClain | Nov 1951 | |
2712590 | Doble | Jul 1955 | |
3446938 | Morgan | May 1969 | |
3571818 | Jacuzzi | Mar 1971 | |
3809073 | Baumann | May 1974 | |
4052757 | Dotson | Oct 1977 | |
4057372 | Johnson et al. | Nov 1977 | |
4169293 | Weaver | Oct 1979 | |
4185187 | Rogers | Jan 1980 | |
4208570 | Rynard | Jun 1980 | |
4233694 | Janosko et al. | Nov 1980 | |
4240166 | Altman et al. | Dec 1980 | |
4330412 | Frederick | May 1982 | |
4339833 | Mandell | Jul 1982 | |
4529033 | Blum | Jul 1985 | |
4563571 | Koga et al. | Jan 1986 | |
4593177 | Trostler | Jun 1986 | |
4594500 | Wright | Jul 1986 | |
4595825 | Gordbegli | Jun 1986 | |
4638147 | Dytch et al. | Jan 1987 | |
4660545 | Ely | Apr 1987 | |
4742456 | Kamena | May 1988 |
Entry |
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C&R Specialties--"Model 40-5100" (including horizontal pump arrangement)-Spa and Sauna Aug., Jul., 84 p. 103. |
Applied Computer Controls Inc. (note heater and control arrangement) Spa and Sauna Jan. 88 p. 83. |
Ramco "Hurracane" (note heater and control arrangement) Spa and Sauna Jan. 88 p. 73. |
Brett Aqualine Inc. advertisement--p. 140 Spaand Sauna Trade Journal Feb. 1984 vol. 9 No. 2. |
German Offenlegungsschrift 3534754 2/4/87 see FIGS. 1-3. |
1987 Brochure The Answer Pak, by HydroQuip Spa Systems. |
Spa and Sauna, "The Voice of the Hot Water Industry" Feb. 1987. |