Lawrence E. Johnson

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Dana Point, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Aerator for swimming pools or the like
- Patent number D254671
- Issue date Apr 8, 1980
- South Pacific Industries, Inc.
- Lawrence E. Johnson
- D15 - Machines not elsewhere specified
Information Patent Grant
Spa safety drain
- Patent number 4,115,878
- Issue date Sep 26, 1978
- South Pacific Industries
- Lawrence E. Johnson
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Aerator
- Patent number 4,057,372
- Issue date Nov 8, 1977
- Johnson; Lawrence E.
- Lawrence E. Johnson
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE