LEO WOLLEMAN MARKS 75TH YEAR

Leo Wolleman Inc., New York, a supplier of diamonds and gemstones, is celebrating 75 years in business this year. Founder Leo Wolleman, an immigrant from Germany, began the stone house with assistance from his many European contacts.

His son Walter, a U.S. Army veteran, and brother-in-law Martin Gurny guided the firm through the second generation. Third-generation professionals include Ken Gurny, who has presided over the gemstone department; Todd Wolleman, president of the firm and director of the diamond department; David Gurny, who directs sales; and David Stein, director of operations.

SUPPLIERS HAVE NEW ADDRESSES

Boxco International Ltd., a packaging company, has moved into new automated facilities at 58-21 56th Dr., Maspeth, NY 11378; (800) 95-BOXCO or (718) 326-1140, fax (877) 95-BOXCO or (718) 326-2840.

Hubert Gem Designs has relocated to 631 S. Olive St., Suite 120, Los Angeles, CA 90014; (213) 627-0234.

GROBET USA ACHIEVES STANDARD

Grobet USA, Carlstadt, N.J., a manufacturer of precision tools, equipment, and supplies, has achieved ISO 9002 registration.

The designation signifies that the company has met an internationally recognized quality standard.