Kenneth Ahlhorn

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Percussive down-the-hole rock drilling hammer and piston therefor
- Patent number 6,131,672
- Issue date Oct 17, 2000
- Sandvik AB
- Rainer Beccu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Precussive down-the-hole rock drilling hammer
- Patent number 6,062,322
- Issue date May 16, 2000
- Sandvik AB
- Rainer Beccu
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS