Bonistalli Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US05/739,809 Inventor Raymond J.
Google Patents Electric furnace station noise and smoke pollution control systemĭownload PDF Info Publication number US4088824A US4088824A US05/739,809 US73980976A US4088824A US 4088824 A US4088824 A US 4088824A US 73980976 A US73980976 A US 73980976A US 4088824 A US4088824 A US 4088824A Authority US United States Prior art keywords furnace charging housing tapping entry Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4088824A - Electric furnace station noise and smoke pollution control system US4088824A - Electric furnace station noise and smoke pollution control system
