Teaching sin and cosine instrument

Technical drawing apparatus

Technique for determining thread accuracy

Technique for locating submerged and buried pipelines

Techniques for the manufacture of garments and apparatus for use

Telecommunication service wire connector

Telecommunications access apparatus

Telemetering drill string with piped electrical conductor

Telemetry drill pipe with pressure sensitive contacts

Telemetry gage system

Telemetry gage system

Telephone apparatus including electrical connector

Telephone building entrance terminal

Telephone building entrance terminal

Telephone cable adapter

Telephone connecting device

Telephone connector

Telephone connector block

Telephone connector block

Telephone connector block apparatus