Appointments/promotions: Richards-Wilcox, Inc. promotes Willie Witten to vice president of operations...Wago Corp. promotes Robert Mehalick to marketing manager...Magline, Inc. appoints Dan Marcott to business unit manager...Advanced Handling Systems Inc. names Chuck Frank president and chief operating officer and adds Sue Shields as account manager, Paul Wooldridge as project engineer, and Kim Thompson to assist in both the sales and engineering departments...Bryan Duncan is sales manager for the Southeast region of Ermanco Inc., Jeffery Seibert is sales manager of the Northeast sales region, and Dale Stordahl is sales manager for the Midwest sales region...Drexel Industries LLC announces the retirement of president and CEO George G. Landberg, Stuart M. Bryan is the new president and CEO, and Tom Berger , PCMH, is now regional manager in the Central Region...Jim Ogburn retires as president and chief operating officer of LB International, Gary Janz assumes the position of executive vice president and chief operating officer, and John Veitch joins as vice president of manufacturing...James A. Schemenaur is now president of Robotic Vision Systems, Inc.'s Acuity CiMatrix Division...Metrologic Instruments, Inc. promotes Jeffrey Yorsz to president and general manager of Adaptive Optics Associates, Inc...SATO America, Inc. appoints J. Michael Fowler to general manager.

Acquisitions/Partnerships: Psion Teklogix Inc. and Remote Equipment Systems, Inc. announce an agreement to jointly deliver advanced solutions for mobile equipment fleet management...Exel acquires Werthmann+Koster , a German automotive logistics provider in order to strengthen their automotive division in Germany...Sedlak Management Consultants signs agreement formalizing its 6 year relationship with Manhattan Associates, Inc ...Tompkins Associates also signs agreement with Manhattan, formalizing a partnership....Yaskawa Electric America, Inc. assumes ownership and operation of the MagneTek drive products business unit in New Berlin, Wisc., formerly a part of the Drives & Systems group of MagneTek, Inc.