Inventor
SIDAWAY H JOHN
US5 patents
Patents
5 patentsUS4709723ADec 1, 1987
Septic tank for alternative sewer systems
HANCOR INC67 citations93
US5556231ASep 17, 1996
Severable leaching chamber with end cap
HANCOR INC67 citations91
US4527319AJul 9, 1985
Method and apparatus for manufacturing foldable conduit
HANCOR INC41 citations91
US5669733ASep 23, 1997
Angled adapter for a leaching chamber system
HANCOR INC46 citations86
US4296891AOct 27, 1981
Expandable core for rolls of tubing
HANCOR INC10 citations65