Lawn sprinkler

Environmental heating and cooling; fluid handling and sanitary e – Fluid handling or treatment equipment – Dispersal

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2301

Patent

active

D04196392

REFERENCES:
patent: D225328 (1972-12-01), Margrill
patent: D232088 (1974-07-01), Margrill
patent: D390312 (1998-02-01), West et al.
patent: D390313 (1998-02-01), Smith
patent: D390911 (1998-02-01), Smith
patent: D391339 (1998-02-01), Smith
patent: D403743 (1999-01-01), Smith
patent: 1758767 (1930-05-01), Taggart
patent: 1847763 (1932-03-01), Keys
patent: 3170171 (1965-02-01), Mayhew et al.
patent: 3326551 (1967-06-01), Clarke
patent: 4498627 (1985-02-01), Arginsky

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