Assertion: plane coordinate system | /r/HasProperty | developed in 1930
Facets:
value: to provide a common reference system
type: PURPOSE
Source sentences:
text: It was developed in the 1930s by the U.S. Coast and Geodetic Survey to provide a common reference system to surveyors and mappers.
text: The State Plane Coordinate System (SPCS) was developed in the 1930s by the United States Coast and Geodetic Survey to provide a common reference system for surveyors and mappers.