Environmental control apparatus Trademarks Filed in May 28, 1971
AIR MIX
Filed: May 28, 1971
SAND FILTERING APPARATUS FOR TERTIARY FILTERING SOLIDS FROM EFFLUENTS FOLLOWING PRIMARY AND SECONDARY SEWAGE TREATMENT
Owned by: SIEMENS INDUSTRY, INC.
Serial Number: 72393451
EBKO
Filed: May 28, 1971
OVERHEAD AND UNDERGROUND COAXIAL-TYPE PIPING SYSTEMS FOR CONVERTING STEAM, WATER, OIL AND CHEMICALS COMPRISING LENGTHS OF…
Owned by: E. B. KAISER CO.
Serial Number: 72393457
