SEC FilingsForm SC 13D/AVISKASE COMPANIES INC filed this Form SC 13D/A on 06/21/1996Document OutlineEntire Document (16.1 KB)Subdocument 1 - SC 13D/A - ZAPATA CORP. - AMEND #1 FOR ENVIRODYNE IND. INC.Page 1 - SECURITIES AND EXCHANGE COMMISSIONPage 2 - ITEM 2(d) or 2(e) [ ]Page 3 - Item 2. Identity and Background.Page 4 - Item 5. Interest in Securities of the Issuer.Page 5 - N/APage 6 - APPENDIX APage 7 - EXHIBIT INDEXSubdocument 2 - EX-99.3 - LETTER AGREEMENT DATED 06/19/96Page 1 - N/APage 2 - N/A