Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7850151 | Diffuser for aeration Disclosed is a diffuser installation structure capable of improving uniformity of air bubbles discharged from air bubble discharge holes, restricting the formation of dead zone air bubble discharge holes, and having the tolerance against design deviation. In the ins... | 12/14/2010 |
| 7731848 | Cartridge module of hollow fiber membranes Disclosed is a cartridge module of hollow fiber membranes, which can be easily mounted on and dismounted from a module mounting frame, and allow a process for removal of the inter-membrane clogging to be performed in an effective and simple manner. The cartridge mod... | 06/08/2010 |
