Current Report

Filing date	Description	Form	Filing Group	View
01/14/20	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-20-000007.pdf 0000006201-20-000007.rtf 0000006201-20-000007.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
01/10/20	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-20-000005.pdf 0000006201-20-000005.rtf 0000006201-20-000005.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
01/6/20	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-20-000003.pdf 0000006201-20-000003.rtf 0000006201-20-000003.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
12/12/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000074.pdf 0000006201-19-000074.rtf 0000006201-19-000074.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
11/12/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000072.pdf 0000006201-19-000072.rtf 0000006201-19-000072.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
11/8/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000070.pdf 0000006201-19-000070.rtf 0000006201-19-000070.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
10/24/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000066.pdf 0000006201-19-000066.rtf 0000006201-19-000066.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
10/9/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000060.pdf 0000006201-19-000060.rtf 0000006201-19-000060.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
09/3/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0000006201-19-000057.pdf 0000006201-19-000057.rtf 0000006201-19-000057.xls
08/15/19	Report of unscheduled material events or corporate event	8-K	Current Reports	View HTML 0001193125-19-222562.pdf 0001193125-19-222562.rtf 0001193125-19-222562.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA