Inventor
STONE RICHARD L
US7 patents
⚠️ This page may combine multiple inventors who share the name “STONE RICHARD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WALLACE MURRAY CORP
3 patentsUS4029344AJun 14, 1977
Connection joint for prefabricated metal chimney
WALLACE MURRAY CORP29 citations80
US4462618AJul 31, 1984
Prefabricated double-walled metal chimney
WALLACE MURRAY CORP17 citations72
US4029343AJun 14, 1977
Expansion joint for prefabricated double-walled metal chimney
WALLACE MURRAY CORP11 citations72