Positioning device and telescopic support

The invention belongs to the technical field of photogrammetric accessories, and particularly relates to a positioning device and a telescopic support. The positioning device comprises a fixing structure connected with the insertion end of a positioning pipe, a rotating structure and a locking struc...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WANG ZHIYUAN, YU DINGGUAN, ZHANG JUNMAO, ZHU YINGHUI
Format:	Patent
Sprache:	chi ; 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 FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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