SEC Filings

Filing date	Form	Description	View
May 23, 2019	10-K	Annual report which provides a comprehensive overview of the company for the past year	View HTML 0000046250-19-000017.pdf 0000046250-19-000017.xls EX-101.INS - XBRL INSTANCE DOCUMENT
May 20, 2020	10-K	Annual report which provides a comprehensive overview of the company for the past year	View HTML 0000046250-20-000027.pdf 0000046250-20-000027.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
Jun 02, 2021	10-K	Annual report which provides a comprehensive overview of the company for the past year	View HTML 0000046250-21-000019.pdf 0000046250-21-000019.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
May 18, 2022	10-K	Annual report which provides a comprehensive overview of the company for the past year	View HTML 0000046250-22-000016.pdf 0000046250-22-000016.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
May 17, 2023	10-K	Annual report which provides a comprehensive overview of the company for the past year	View HTML 0000046250-23-000015.pdf 0000046250-23-000015.xls EX-101.SCH - XBRL TAXONOMY EXTENSION SCHEMA
Jun 19, 2015	10-K/A	Amendment to a previously filed 10-K	View HTML 0000046250-15-000015.pdf 0000046250-15-000015.xls
Dec 28, 1995	10-K405	Annual report. The Regulation S-K Item 405 box on the cover page is checked	View HTML 0000912057-95-011660.pdf 0000912057-95-011660.xls
Jan 03, 2000	10-K405	Annual report. The Regulation S-K Item 405 box on the cover page is checked	View HTML 0000912057-00-000121.pdf 0000912057-00-000121.xls
Dec 28, 1998	10-K405	Annual report. The Regulation S-K Item 405 box on the cover page is checked	View HTML 0001047469-98-045194.pdf 0001047469-98-045194.xls
Jun 27, 2002	10-KT	Annual transition reports filed rule 13a-10 or 15d-10 of the Securities Exchange Act	View HTML 0001104659-02-002921.pdf 0001104659-02-002921.xls