Inventor

HARDWICK JOHN R

2 patents

⚠️ This page may combine multiple inventors who share the name “HARDWICK JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BUTLER MANUFACTURING CO

1 patent

US4102285AJul 25, 1978

Knock-down starting platform for a roof seaming machine

BUTLER MANUFACTURING CO8 citations69

BUTLER MFG

1 patent

US4195586AApr 1, 1980

Knock-down starting platform for a roof seaming machine

BUTLER MFG2 citations57