| |
Class Information
Number: 411/462
Name: Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener > Impact driven fastener, e.g., nail, spike, tack, etc. > Multiple prong, e.g., nailing plate, staple, etc. > Of sheet metal > Including stiffening means
Description: Subject matter wherein stiffening means are provided or a portion of the fastener is shaped to increase the rigidity of the sheet metal.
Sub-classes under this class:
Patents under this class:
|
|
|
