Electro-magnetic door holder

Electro-magnetic trunk latch release accessory

Electro-mechanical cylinder lock-key combination with...

Electro-mechanical door opening and closing device

Electro-mechanical leverlock with switching system

Electro-mechanical locking system

Electro-mechanical power angle snow plow

Electro-mechanical system for determining key cuts for...

Electro-mechanical thruster

Electro-mechanical wireline anchoring system

Electro-optic cablehead for oil well applications

Electro-osmotic conversion of moist clay into a granular...

Electro-osmotic production of hydrocarbons utilizing...

Electro-thermal process for production of off shore oil...

Electroacoustic method and device for stimulation of mass...

Electrochemical process for effecting redox-enhanced oil...

Electrode device for electrically heating underground...

Electrode supporting conduit tube for electrical heating of...

Electrode unit for electrically heating underground...

Electrode well for electrically heating a subterranean...