Geochemical prospecting
United States Patent 2261764

Inventors:
Leo, Horvitz
Publication Date:
11/04/1941
View Patent Images:
Download PDF 2261764 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Esme, Rosaire E.
Primary Class:
436/33
Other Classes:
436/133
International Classes:
G01N33/24