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 |
| 5520746 | Detergent for cleaning drain pipe A detergent for cleaning drain pipe comprises lipocatabolic lipase and an imbibing agent. Sodium hydrogencarbonate may be used as an imbibing agent. The detergent may includes a foaming agent, pH conditioning agent, and/or enzyme activation retaining agen... | 05/28/1996 |
| 5407595 | Detergent for cleaning drain pipe A detergent for cleaning drain pipe comprises lipocatabolic lipase and an imbibing agent. Sodium hydrogencarbonate may be used as an imbibing agent. The detergent may includes a foaming agent, pH conditioning agent, and/or enzyme activation retaining agen... | 04/18/1995 |
| 4634933 | Photographic illumination apparatus The present invention provides a photographic lighting apparatus for illuminating a photographic object in taking the object with a camera such as a television camera or an 8 mm movie camera. The photographic lighting apparatus is capable of illuminating ... | 01/06/1987 |
| 4555747 | Coupling mechanism of photographic flash device A photoflash apparatus is disclosed in which a flash unit is selectively connected to adapter units through a coupling mechanism which includes a coupling pin in a mounting structure of one unit engaged by a slide plate in a mounting structure of the othe... | 11/26/1985 |
| 4491405 | Camera suitable for flash photography The present invention has two photometric circuits, namely photointegrating circuits, one of them is for day light photography and other is for flash photography. Normally the photointegrating circuit for flash photography is retained inoperatable, but wh... | 01/01/1985 |
| 4360764 | Flash unit having plural flashlamps An electronic flash unit is disclosed which includes one flashlamp arranged to illuminate an object from the front side thereof and another flashlamp which is rotatably mounted and arranged to direct light at an angle such as to illuminate the object afte... | 11/23/1982 |
| 4329624 | Computer type electronic photoflash A computer type electronic photoflash consisting of a main photoflash unit having photoflash emission and photoflash light volume control functions and a plurality of adapters connectable thereto. Each of said adapters is used with a photographic camera f... | 05/11/1982 |
| 4152584 | Magnetic card reading apparatus with novel card forwarding means A magnetic card reading apparatus for use as a teaching aid includes a card forwarding device which is operated by placing a magnetic information card in a starting position on a card path to move the card in a forward direction under a constant pressure ... | 05/01/1979 |
