https://data.epo.org/publication-server/rest/v1.2/publication-dates/20170913/patents/EP2715057NWB1/document.html
WINDOW JOINT FOR LATERAL WELLBORE CONSTRUCTION AND METHOD FOR OPENING SAME - Patent 2715057
WINDOW JOINT FOR LATERAL WELLBORE CONSTRUCTION AND METHOD FOR OPENING SAME - Patent 2715057
wellbore construction