Answer | Crossword Clue |
---|---|
SPAD | Marker used in mine surveying |
SPAD | Marker used in surveying. |
SPADS | Nails used in mine surveying. |
SPAD | Nail used in surveying. |
ALIDADE | Angular measurement device used in surveying |
groma | (in ancient Roman surveying) instrument having a cruciform wooden frame with a plumb line at the end of each arm, used for laying out lines at right angles to existing lines |
gromas | (in ancient Roman surveying) instrument having a cruciform wooden frame with a plumb line at the end of each arm, used for laying out lines at right angles to existing lines |