SEC Filings

Filing date	Form	Description	View
May 15, 2020	8-K	Report of unscheduled material events or corporate event	0000046080-20-000056.pdf 0000046080-20-000056.rtf 0000046080-20-000056.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
May 07, 2020	10-Q	Quarterly report which provides a continuing view of a company's financial position	0000046080-20-000054.pdf 0000046080-20-000054.rtf 0000046080-20-000054.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
Apr 29, 2020	8-K	Report of unscheduled material events or corporate event	0000046080-20-000050.pdf 0000046080-20-000050.rtf 0000046080-20-000050.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
Apr 13, 2020	8-K	Report of unscheduled material events or corporate event	0000046080-20-000044.pdf 0000046080-20-000044.rtf 0000046080-20-000044.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
Apr 13, 2020	DEFA14A	Additional proxy soliciting materials - definitive	0000046080-20-000045.pdf 0000046080-20-000045.rtf 0000046080-20-000045.xls
Apr 02, 2020	4	Statement of changes in beneficial ownership of securities	0000046080-20-000034.pdf 0000046080-20-000034.rtf 0000046080-20-000034.xls
Apr 02, 2020	4	Statement of changes in beneficial ownership of securities	0000046080-20-000035.pdf 0000046080-20-000035.rtf 0000046080-20-000035.xls
Apr 02, 2020	4	Statement of changes in beneficial ownership of securities	0000046080-20-000036.pdf 0000046080-20-000036.rtf 0000046080-20-000036.xls
Apr 02, 2020	4	Statement of changes in beneficial ownership of securities	0000046080-20-000037.pdf 0000046080-20-000037.rtf 0000046080-20-000037.xls
Apr 02, 2020	4	Statement of changes in beneficial ownership of securities	0000046080-20-000038.pdf 0000046080-20-000038.rtf 0000046080-20-000038.xls

Data provided by Kaleidoscope.