Surveyor's Instrument.
Description:
Patent for a new and improved surveyor's instrument. This design consists in "[t]he instrument for surveying and analogous purposes, consisting of protractor, right-angled piece, and [additional] piece, the two latter pivoted to move independently on the protractor" (lines 9-13).
Date:
March 10, 1885
Creator:
Dolman, John H.
Item Type:
Refine your search to only
Patent