Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Patents on geophysical prospecting issued in the United States, England, Canada, Australia, Germany, France, and Russia

Published Year

• 1930-1939 (1)

Subject

• Geophysics (1) *
• Prospecting (1)

Author

• Ayvazoglou, W. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010