Roller cutter drill bit with mixed bearing types
- Application ID: EP14187264
- Status: █ EXAMINATION IN PROGRESS
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Murgitroyd & Company is specialized in E21. Murgitroyd & Company 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.