DRILL BIT WITH SEAL HAVING SPHERES IN A MATRIX SEAL MATERIAL
- Application ID: EP11876488
- Status: █ APPLICATION DEEMED TO BE WITHDRAWN
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). A.A. Thornton & Co. is specialized in E21. A.A. Thornton & Co. 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.