METHOD FOR FLUID CARRIAGE IN DEEP-SEAM COAL HYDRAULIC MINING
- Application ID: EP13796922
- Status: █ APPLICATION WITHDRAWN
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Franke & Partner is specialized in E21. Franke & Partner is specialised in E21 (EARTH OR ROCK DRILLING; MINING). Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.