RH

Roy Hartness

PN Pneumafil: 2 patents #4 of 16Top 25%
Overall (All Time): #2,295,153 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5321942 Method and apparatus for directing conditioned air to a spinning machine — 1994-06-21
4857090 Energy conservation system for cooling and conditioning air — 1989-08-15