Skip to main content
U.S. flag

An official website of the United States government

The ER-55 projector for aerial mapping

January 1, 1953

[No abstract available]

Publication Year 1953
Title The ER-55 projector for aerial mapping
Authors R.K. Bean
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Index ID 70011088
Record Source USGS Publications Warehouse