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US 3,943,659 AGranted
Filtration and circulation system and apparatus therefore
OwnerLouis N. Katzinventor
Life of this patent
Estimating the term…
Abstract
A balanced system for purifying aquatic media and maintaining aquatic specimens which comprises biological filtration, mechanical filtration and algae propagation.
Claims10
An algae propagation chamber comprising a housing filled with transparent spheres surrounding a centrally located light source and means for entry and exit of aqueous media.
Dependencies are inferred from the claim text.