Data, fax & voice encryption equipment, worldwide.
Contributors: International Resource Development, inc.
Series: Report ;; #782; Report (Internatioanl Resource Development, inc.) ;; #782.
Publisher: International Resource Development
Published: 1991
Place of publication: New Canaan, Conn
Language: eng
Number of pages: 298
Subjects: Cryptography equipment industry.; Market surveys.
Other titles: Data, fax, and voice encryption equipment, worldwide.
Notes: "December 1991."