Antitheft screw

The utility model discloses an antitheft screw, composed of a conventional screw whose end part is provided with a hole or a cross-shaped kerf. Because the screw on an isolation railing on an expressway and the screw on a high-tension line pylon are often stolen, the government property and people&#...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	LIYIN ZOU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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