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Class Information
Number: 411/528
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Fastener securing element > Resilient metallic > Sheet metal > Having longitudinal slit coincident with element axis
Description: Subject matter wherein the material is provided with a long narrow cut lying in the longitudinal axis of the structure.


Patents under this class:

Patent Number Title Of Patent Date Issued
6220806 Twin impression push nut Apr. 24, 2001
4580322 Quick release fastener Apr. 8, 1986
4325178 Screw anchoring device and method Apr. 20, 1982
4286246 Heat-up/cool-down bimetal timer for electric toaster Aug. 25, 1981
4201111 Sheet metal fastener and method of making May. 6, 1980



 
 
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