Richard H. Hartwich, who operated an international wholesale and retail wig and hairpiece business in Baltimore, died early Tuesday at Church Hospital of complications to heart surgery performed Jan. 31 at Johns Hopkins Hospital.

Services for Mr. Hartwich, who was 76 and lived on East Belvedere Avenue, will be held at 10 a.m. tomorrow at the Mitchell-Wiedefeld funeral establishment, 6500 York Road.

He is survived by his wife, the former Patricia L. Russell; and a daughter, Karina Pakiz of Woodbine.