Number | Name | Date | Kind |
---|---|---|---|
2536273 | Gahagan | Jan 1951 | |
2777914 | Brown | Jan 1957 | |
4064755 | Bongort et al. | Dec 1977 | |
4134514 | Schumacher et al. | Jan 1979 | |
4298037 | Schumacher et al. | Nov 1981 | |
4436674 | McMenamin et al. | Mar 1984 | |
4676404 | Yamazaki et al. | Jun 1987 | |
4859375 | Lipisko et al. | Aug 1989 | |
4979545 | Fair | Dec 1990 | |
4979643 | Lipisko et al. | Dec 1990 | |
5038840 | Fair | Aug 1991 | |
5041267 | Randtke et al. | Aug 1991 | |
5069244 | Miyazaki et al. | Dec 1991 | |
5079950 | McKiernan et al. | Jan 1992 | |
5103673 | Sawada et al. | Apr 1992 | |
5137063 | Foster et al. | Aug 1992 | |
5148945 | Geatz | Sep 1992 | |
5285812 | Morales | Feb 1994 |
Entry |
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B/W Unifloat Liquid Level Control Systems by B/W Controls Inc. Dec. 7, 1976. |
TransFill.TM., Chemical Refill System, Brochure by Air Products and Chemicals, Inc., Aug. 1991 Rev. 1, Schumacher. |
Announcing A New Era In Liquid Chemical Delivery, TransFill II.TM., Product Brochure by Schumacher (1969). |