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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7166023 | Vent assembly with single piece cover A vent assembly has a base and a single piece cover that is attached to the base to form a housing. A partition inside the housing forms an upper compartment that communicates with an outlet at the rear of the cover and a lower compartment that communicates with an ... | 01/23/2007 |
| 6468149 | Air vent for a vehicle A two-piece hardtop for sport utility vehicles. An air vent is provided that allows air to flow out from the interior of the vehicle without letting water enter the vehicle through it.... | 10/22/2002 |
| 5967461 | High efficiency environmental control systems and methods A high efficiency environmental control system uses air exhausted from a pressurized cabin to cool compressed air entering the cabin. Air exhausted from the cabin may flow directly from the cabin through a heat exchanger which cools the compressed air ent... | 10/19/1999 |
| 5482229 | Apparatus for generating energy on board of an aircraft An apparatus for generating or recovering energy on board an aircraft effectively utilizes the cabin exhaust air stream, which has a high thermal energy and a differential pressure, before it is discharged into the environment outside the aircraft. In thi... | 01/09/1996 |
| 5389035 | Ventilating apparatus for a vehicle A ventilating apparatus for a conveyance has a first conduit disposed on the upper portion of a vehicle so as to supply conditioned air allowed to flow from an air conditioned device into a compartment, a second conduit disposed in the lower portion of th... | 02/14/1995 |
| 4592269 | Static vent device A static vent for a vehicle such as a bus wherein the interior of the vehicle is continuously vented to the atmosphere in such a way as to prevent the ingress of rain water to the vehicle compartment.... | 06/03/1986 |
| 4552325 | Emergency smoke disposal system for pressurized aircraft The present invention provides a convenient and reliable means to evacuate smoke from an interior cabin (30) of a pressurized aircraft (20) by providing a normally closed smoke evacuation outlet (102) in the skin (108) of the aircraft in fluid communicati... | 11/12/1985 |
| 4235162 | Exhaust vent for cooling rigs transported on vehicles An exhaust vent for cooling rigs transported on vehicles the interior of which is cooled by the introduction of low boiling gas includes inserts in front or behind the exhaust vent to force the outflowing gas to be deflected several times.... | 11/25/1980 |
