STEP #17 - I brevetti
Theodolite. An improved theodolite in which the optical member is supported for rotation in addition to the conventional vertical and horizontal axes about a third axis fixed normal to the optical axis thus enabling one to move the optical member in a plane common to the optical axis about a normal turning axis at all positions of said optical member. (1963)
Electronic theodolite. The device comprises a horizontally and vertically movably supported laser (1), which is mounted in a forked carrier (7) so as to be rotatable through 360° about a tilt axis (8) which extends at right angles to the laser exit beam (6) and which intersects this beam, in the manner of a theodolite. (1988)
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