Patents Assigned to Grayline International Limited
  • Portable secure-telephone communications module
    Patent number: 5454037
    Abstract: A portable secure-telephone communications module including a collapsible enclosure for holding a person desiring to perform secure remote telephone communications, a secure telephone remote communication device in the enclosure, and RF shielding for the enclosure to inhibit RF leakage for preventing eavesdropping from outside the enclosure.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: September 26, 1995
    Assignee: Grayline International Limited
    Inventor: Angelo M. Pacella