METHOD FOR FORMING A GROUP OF ELECTRODES ON A SEGMENT OF A DRILL ROD TRAIN
Номер патента: FR2536005B1
Опубликовано: 22-04-1988
Автор(ы): Jean Raynal
Принадлежит: Teleco Oilfield Services Inc
Опубликовано: 22-04-1988
Автор(ы): Jean Raynal
Принадлежит: Teleco Oilfield Services Inc
METHOD FOR FORMING A GROUP OF ELECTRODES ON A SEGMENT OF A TRAIN OF DRILLING RODS
Номер патента: FR2536005A1. Автор: Jean Raynal. Владелец: Teleco Oilfield Services Inc. Дата публикации: 1984-05-18.