Claims (1)
Claim 1 (Independent)
The ornamental design for a screw driver bit, as shown and described.
Full Description
Show full text →
FIG. 1 is a perspective view of a screw driver bit, showing the new design;
FIG. 2 is a side elevation view thereof; and,
FIG. 3 is an enlarged end view of the tip.
Citations
This patent cites (27)
- US2445525
- US4191228
- USD311483
- USD312034
- US4998454
- US5291811
- USD431768
- US6164171
- USD455627
- USD455943
- US6397710
- USD474388
- US7111531
- USD576009
- USD606833
- USD606834
- USD821842
- US20050268757
- US20100037737
- US20100242687
- US20180117743
- US20180193986
- US20180347612
- US20190358794
- US2 447 550
- US2008/032137
- US2014/195410