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Inventor
ZAIS MICHAEL
US
2 patents
Patents
2 patents
US6280614B1
Aug 28, 2001
Residential septic tank
XERXES CORP
72 citations
93
US6558535B2
May 6, 2003
Residential septic tank with seams above sewage line and residential septic tank with stepped ribs
XERXES CORP
10 citations
71