Telescopic folding ruler for measuring perpendicularity of wall body

The utility model discloses a telescopic folding ruler for measuring the perpendicularity of a wall body, which comprises a horizontal rod and a vertical rod, and the horizontal rod is perpendicular to the vertical rod; an inner rod is movably arranged in the horizontal rod, and a spring buckle clam...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHENG ZHEMIN, SHAO ZHUANG, LI GESHUO, NIE LONG, WEI JINHUI, SONG QINGFEN, LYU BINGYING, KANG XIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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