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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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| Application No. | Application Title | Issue Date |
| 20070172330 | Screw loosening prevention structure and gas pressure device including same A screw loosening prevention structure and a gas-pressure device are provided. The structure includes a first member that is formed with a container space filled with gas, and includes a first threaded portion, a second member that includes a second threaded portion, wh... | 07/26/2007 |
| 20060188357 | Nut cap and method of securing a nut on a bolt An apparatus for containing a nut on a bolt including a housing having a main body, a proximal end and a distal end. A threaded aperture may be formed within the distal end of the main body for threading the housing onto the bolt. A flange extending from the housing tha... | 08/24/2006 |
| 20060039773 | Fastener An object of the present invention is to provide a fastener made compact on the whole and capable of producing a strong fastening strength. To attain the object according to the invention, there is provided a fastener for being fitted to a... | 02/23/2006 |
| 20060018731 | Cage for electrical connection nut The invention divulges a method of installing a nut in a cage in order to make a secure connection of two elements by screwing the nut on a threaded rod, particularly in the case in which the electrical connection is made using a lug. The cage is in the form of a cylind... | 01/26/2006 |
| 20050175430 | Bolt or nut locking fastener and fastening system A fastening system and assembly functions as a washer ring components but also provides for locking the bolt head end to prevent rotation of the threaded shaft while tightening the nut. The same device can be used alone on the threaded end of a bolt, or in conjunction w... | 08/11/2005 |
