Inventor
WRIGHT DERICK C
US4 patents
Patents
4 patentsUS6155493ADec 5, 2000
Closed-case impact sprinklers
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US6478237B2Nov 12, 2002
Enclosed pop-up sprinklers with shielded impact arms
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US6209801B1Apr 3, 2001
Closed-case impact sprinklers with fitted fluid seal assemblies
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US5992760ANov 30, 1999
Impact sprinkler unit
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