Inventor
JOHNSON HAROLD R
4 patents
Patents
4 patentsUS5127587AJul 7, 1992
Kitchen composter
JOHNSON HAROLD R23 citations88
US4367631AJan 11, 1983
Air conditioning apparatus and methods using underground duct
JOHNSON HAROLD R31 citations86
US4667874AMay 26, 1987
Energy saving furnace controller
JOHNSON HAROLD R27 citations83
US4160539AJul 10, 1979
Hand operated jack for a multipurpose jig apparatus of the type including a length of pipe and a plurality of releasable, pipe-gripping tail stops
JOHNSON HAROLD R3 citations58