Louis MO) has acquired Packaging Plus (Valencia CA).DuPont Holographics (Wilmington DE) a unit within the Photopolymer & Electronic Materials business group has acquired Krystal Holographics Intl. Inc. (New York NY).Hoover Materials Handling Group Inc. (Alpharetta GA) has acquired Plymouth Mfg. (Plymouth NE). Brady Corp. (Milwaukee WI) has a tentative agreement to purchase Imtec Inc. (Bellows Falls VT). The deal expected to close in April would result in Imtec joining Bradys identification solutions and specialty tapes group. Also Imtec and Advance Bar Code Technology Inc. (Atlanta GA) as part of their Strategic Partnership Alliance have agreed to initiate joint sales and marketing efforts working with ABC MultiLing multilingual software.The Holographic Div. of CFC Intl. Inc. (Chicago Heights IL) will exercise its option to purchase the worldwide rights to the holographic technology of Applied Holographics PLC (London England) during the first quarter of this year.James Alexander Corp. (Blairstown NJ) has acquired the assets of Newton Industries (Newton NJ).Eastman Chemical Co. (Kingsport TN) and Isotag Technology Inc. (Houston TX) have entered into an agreement for Isotag to acquire Eastmans ClirCode invisible marking technologies assets and business in exchange for Eastman acquiring an equity position in Isotag.Delta Plastics Corp. (Hot Springs AR) and Essex Plastics Inc. (Pompano Beach FL) have formed FlexSol Holding Corp. (Pompano Beach FL) a privately held holding co. that will provide capital for growth.Ormec (Rochester NY) and DVT Corp. (Norcross GA) have formed a strategic marketing relationship that enhances each co.s ability to provide effective solutions for vision-guided motion applications. Pinnacle Automation Inc. (St. Louis MO) and The Power Group (St. Charles IL) have formed an alliance to co-develop and market supply-chain and e-commerce solutions for food and other consumer products cos.