Norm-Entwurf
12/30255494 DC
12/30255494 DC
BS ISO 12858-1. Optics and optical instruments. Ancillary devices for geodetic instruments. Part 1. Invar levelling staffs. Part 1: Invar levelling staffs
Titel (englisch)
BS ISO 12858-1. Optics and optical instruments. Ancillary devices for geodetic instruments. Part 1. Invar levelling staffs. Part 1: Invar levelling staffs