Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| D659308 | Floor cleaning machine | 05/08/2012 |
| D642343 | Floor cleaning machine | 07/26/2011 |
| D609413 | Portable restroom | 02/02/2010 |
| D595909 | Cleaning device | 07/07/2009 |
| D593717 | Floor cleaning machine | 06/02/2009 |
| D589662 | Sweeping machine | 03/31/2009 |
| D580606 | Sweeping machine | 11/11/2008 |
| D574561 | High-pressure cleaner | 08/05/2008 |
| D570559 | Steering assembly for a floor cleaning machine | 06/03/2008 |
| D569057 | Floor cleaning apparatus | 05/13/2008 |
| 7281753 | Vehicle enclosure Door assembly includes a doorframe that can be secured to the vehicle, and a preferably rigid door that is movable between an open and closed position. The door can be secured to the vehicle in the open position so that the passengers have the option of riding in th... | 10/16/2007 |
| D549405 | Vacuum trash collection vehicle | 08/21/2007 |
| 7240909 | Telescoping handle for paint cart A paint pump cart having a telescoping handle assembly including a paint pump frame having a pair of standtubes, a handle having a pair of extensions received in the standtubes, and a pair of knobs mounted on the standtubes. Each knob is rotationally movable with re... | 07/10/2007 |
| D544659 | Floor cleaning machine | 06/12/2007 |
| D543323 | Floor treatment device | 05/22/2007 |
| D542988 | Cleaning apparatus | 05/15/2007 |
| 7199711 | Mobile floor cleaner data communication In a method of communicating data from a mobile floor cleaner to a remote receiver a data communication is initiated from a communicator of the mobile floor cleaner to the remote receiver and data is communicated to the remote receiver with the communicator. ... | 04/03/2007 |
| D538492 | Floor treatment device | 03/13/2007 |
| D536845 | Floor treatment device | 02/13/2007 |
| D536842 | Floor treatment device | 02/13/2007 |
| D536843 | Floor treatment device | 02/13/2007 |
| D536844 | Floor treatment device | 02/13/2007 |
| D536846 | Floor treatment device | 02/13/2007 |
| D536146 | Floor treatment device | 01/30/2007 |
| D533320 | Floor treatment device | 12/05/2006 |
| D530463 | Bowling lane conditioning machine | 10/17/2006 |
| D526101 | Swimming pool cleaner robot | 08/01/2006 |
| 7051399 | Cleaner cartridge A cleaner cartridge includes a container having an interior cavity, in which cleaning agent can be stored. A first end of conduit is fluidically coupled to the interior cavity. A second end of the conduit is connectable to a chemical dispenser. ... | 05/30/2006 |
| D502296 | Enclosure for a sweeper vehicle | 02/22/2005 |
| D496763 | High pressure cleaner | 09/28/2004 |
| D496503 | High pressure cleaner | 09/21/2004 |
| D490579 | Enclosure for sweeper vehicle | 05/25/2004 |
