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US20130170922 |
METHOD AND A PLANT FOR WASHER PRODUCTION AND A WASHER
A method for producing metallic washers (1) for locking in bolted joints, a washer having an annular configuration and on one side (9) a pattern of radially extending cams (10) and on the other... |
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US20070128000 |
Dispersed cholesteric liquid crystal display with color filter
A dispersed cholesteric liquid crystal display, comprises an upper substrate, an upper layer, a lower layer, divided by a plurality of barriers in a plurality of lower pieces placed in cells below... |
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US20060222472 |
Fastener assembly
The present invention relates to a stud including, a first end and a second end, a torque transferring structure located at the first end, and a shaft provided with an axis and including a... |
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US20070243040 |
Bolt and nut combination
A bolt and nut combination has a nut assembly and a bolt assembly. The nut assembly has a nut and a washer. The nut has a threaded hole and wedging surfaces. The washer is connected with the nut... |
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US20060083600 |
Fastening apparatus and a special tool thereof
An invention relates to metals or plastic means for fastening work-piece, especially to a stop backing, anti-detaching thread fastener and its matched specific tool. The invention provides thread... |
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US20060216129 |
Loose-proof screw bolt
A loose-screw bolt is disclosed. The screw bolt comprises a pad, a bolt and a nut, wherein the pad is a flat surface and the flat surface is provided with at least a V-shaped slot arranged... |
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US20150204374 |
RATCHET NUT AND WASHER
A fastening system which includes a bolt, a washer with at least one protrusion on one surface and at least one tooth on the other surface, and a nut with at least one tooth on a surface are... |
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US20090003960 |
Bolt and Washer Assembly Having Self-Locking and Burglarproof Functions
A bolt and washer assembly includes a washer, and a bolt including a threaded rod extended through the washer and a bolt head mounted on the threaded rod. The bolt head of the bolt has a top... |