-
-
-
Symbiotic filter-sterilizer
-
Patent number 4,766,321
-
Issue date Aug 23, 1988
-
Lew; Jung G.
-
Hyok S. Lew
-
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
-
-
-
-
-
-
-
Seal with cleft seating surface
-
Patent number 4,582,330
-
Issue date Apr 15, 1986
-
Hyok S. Lew
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
-
Air-vac toilet
-
Patent number 4,561,132
-
Issue date Dec 31, 1985
-
Hyok S. Lew
-
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
-
-
-
Ball-plug pendulum check valve
-
Patent number 4,546,792
-
Issue date Oct 15, 1985
-
Hyok S. Lew
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...