The use of protractors dates back over 500 years. Although older instruments were used for angle measurement in addition to other mathematical pursuits,Thomas Blundevilleintroduced a tool specifically for measuring and constructing angles in his 1589Briefe Description of Universal Mappes & Cardes. It ...
(b) the importer, at the time of importation, furnishes an undertaking to the Deputy Commissioner of Customs or the Assistant Commissioner of Customs, as the case may be, to the effect that he shall use the imported goods exclusively for the construction of roads and that he shall not sell...