Assignee

STONE DAMON K

US·2 granted patents·59 citations·filing 1986–1988

Technology mixE04H2 F01D2 F04D2

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2 records

0172US5028321AMethod and apparatus for water circulation, cleaning, and filtration in a swimming poolSTONE DAMON K·Filed 1988·Granted Jul 2, 1991·41 cites·12 claims
0240US4832838AMethod and apparatus for water calculation and filtrationSTONE DAMON K·Filed 1986·Granted May 23, 1989·18 cites·9 claims

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