72398735
Jul 29, 1971
Oct 31, 1972
COMPOSITE TUBING BUNDLES HAVING ONE OR MORE SAMPLING LINES AND ONE OR MORE HEATING ELEMENTS OR LINES DISPOSED IN HEAT TRANSFER RELATION WITH THE SAMPLING LINE OR LINES, AND ALL BEING ENCASED OR HOUSED IN AN INSULATING AND PROTECTIVE SHEATH FOR TRANSMISSION OF FLUIDS IN TRACE LINE SAMPLING OR THE LIKE
Firearms