Y level levelling instrument

From EngHydroDic
Revision as of 05:03, 21 November 2009 by Ihb (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

A levelling instrument having the telescope, with attached spirit level, supported in Y's. The telescope can be rotated about its longitudinal axis in the Y's and it can be lifted and reversed, end for end.

Personal tools