Michael L. Schroder

Follow

Person

Evergreen, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Strip-auger method of mining thin seams of hydrocarbonaceous deposits
- Patent number 4,589,700
- Issue date May 20, 1986
- Standard Oil Company (Indiana)
- Michael L. Schroder
- E21 - EARTH DRILLING MINING