David M. Clonch

Follow

Person

Beckley, WV, US

People

Patents Grantslast 30 patents

Information Patent Grant
Tailgate design
- Patent number 6,264,262
- Issue date Jul 24, 2001
- Long-Airdox Company
- David M. Clonch
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pivot locking device
- Patent number 5,855,467
- Issue date Jan 5, 1999
- Long-Airdox Company
- David M. Clonch
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Drilling apparatus
- Patent number 5,794,721
- Issue date Aug 18, 1998
- Long-Airdox Company
- David M. Clonch
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pivoted lifting device
- Patent number 5,664,932
- Issue date Sep 9, 1997
- Long-Airdox Company
- David M. Clonch
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Roof support for underground excavations
- Patent number 5,584,611
- Issue date Dec 17, 1996
- Long-Airdox
- David M. Clonch
- E21 - EARTH DRILLING MINING