Inventor
BUTCHER RONALD S
CA7 patents
⚠️ This page may combine multiple inventors who share the name “BUTCHER RONALD S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT STEEL CAR LTD
6 patentsUS5520489AMay 28, 1996
Retractable guide assembly for changing the effective width of a railroad freight car container well
NAT STEEL CAR LTD67 citations95
US4802420AFeb 7, 1989
Centre beam railroad car
NAT STEEL CAR LTD55 citations95
US5842821ADec 1, 1998
Container support pedestal
NAT STEEL CAR LTD30 citations92
US5749686AMay 12, 1998
Pivotable sidewall mounted container stop for railcar well
NAT STEEL CAR LTD29 citations92
US5465670ANov 14, 1995
Railroad freight car having an improved structural support
NAT STEEL CAR LTD48 citations91
US4784548ANov 15, 1988
Double-stacked freight car
NAT STEEL CAR LTD14 citations73