hereby publish it under the following license: English Screw. Crossed Slot with central recess object of statement has role: photographer author name...
hereby publish it under the following license: English Screw Head. Crossed Slot with central recess author name string: Andrew Pertsev Wikimedia username:...
File:Screw Head - Slotted.svg licensed with PD-self 2009-07-14T21:43:46Z Inductiveload 40×40 (2857 Bytes) {{Information |Description=Diagram of a screw head...
hereby publish it under the following license: English Slotted screw with a central recess. (European patent application. Registration number: 81102529...
public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. Public domain works must...
