Water Culture, Apparatus Or Method Patents (Class 47/59R)
Porous support (Class 47/64)
Substrate or matrix, e.g., gel, artificial soil (Class 47/59S)
Cultivating chamber (Class 47/60)
Nutrient recirculation system (e.g., hydroponic system) (Class 47/62R)
Individual support (Class 47/63)

There are no patents to show for this class.