METHOD AND APPARATUS FOR PRODUCING SOUND PULSES WITHIN BORE HOLES
- Application ID: EP13847095
- Status: █ The patent has been granted
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Lorenz & Kollegen PartGmbB 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.