Jewell Instruments TT-242

Jewell Instruments 301-0401TP

Jewell Instruments 301-301TP

Jewell Instruments 301-327T75TP

Jewell Instruments 8072

Jewell Instruments 0401-11DD-TP

Jewell Instruments 10-3965

Jewell Instruments 305-30WPTP

Jewell Instruments SLM400

Jewell Instruments TMP50-NIST