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CA919962A
|
|
Recessed screw having rounded re-entrant surfaces
|
|
CA873057A
|
|
Punch for making recessed screw
|
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CA886861A
|
|
Driver bit
|
|
US3604305A
|
|
Recessed screw
|
|
US3398625A
|
|
Self-tapping screw
|
|
US3370501A
|
|
Nut receiving piercing self-tapping screw
|
|
US3283638A
|
|
Socket head screw
|
|
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|
|
Pallet support
|
|
FR1328835A
|
|
Self-tapping wood screws
|
|
GB925135A
|
|
Self-tapping wood screw
|
|
US3136205A
|
|
Self-tapping wood screw
|
|
DE1181648B
|
|
Screwdriver for screws with polygonal socket
|
|
GB808165A
|
|
Improvements in wood screws and their manufacture
|
|
GB837889A
|
|
Screw driver bit
|
|
US2936010A
|
|
Screw driver bit
|
|
GB833257A
|
|
Methods and tools for making socket type screws
|
|
US2914984A
|
|
Screw socket of pyramidal cross section terminating in a conical bottom wall
|
|
US2722432A
|
|
Wheel adjustment for mowers
|
|
GB607166A
|
|
Improvements in or relating to screw drivers
|
|
CA577971A
|
|
Wood screws and their manufacture
|
