Inventor
HAVERSTICK JON K
US2 patents
Patents
2 patentsUS7530255B2May 12, 2009
Devices, systems and methods for testing of gas detectors
MINE SAFETY APPLIANCES CO25 citations89
US7180076B2Feb 20, 2007
Photoionization detectors, ionization chambers for use in photoionization detectors, and methods of use of photoionization detectors
MINE SAFETY APPLIANCES CO11 citations79