Detection of concealed metalliferous deposits, hydrocarbons and explosives
US4192176A · kind A · utility
13Cited by
15References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1977 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Nov 3, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2001/2833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of collecting and processing geochemical samples in which particles which are contained on the very surface, or surficial layer of the earth, or of vegetation are collected, and are graded to exclude fine particles below about 50 microns in size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.