Antelope, California
United States
2
2005-05-12
Steven E. Christensen from Antelope, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Jet propulsion system for spa or jetted bath using control of air draw to venturi jets with a three-way air control valve
#2 | 2005-03-01Jet propulsion system for spa or jetted bath using control of air draw to Venturi jets with a three-way air control valve
4837662 ⎘