73838746
Nov 13, 1989
Nov 27, 1990
GROUSER BARS USED AS REPLACEMENTS ON TRACK SHOES OF CRAWLER TYPE CONSTRUCTION MACHINES; ADJUSTABLE ALUMINUM HYDRAULIC POWERED MACHINE ASSEMBLY FOR TRENCH SHORING AND BRACING; HYDRAULICALLY OPERATED IMPACT HAMMERS; HYDRAULICALLY OPERATED DRIVERS FOR PILING, SHEATHING, AND BULK HEADING, AND PARTS THEREOF; POWER OPERATED EDGE HARDENED STEEL PAVEMENT CUTTERS AND FORGED OR CAST SHAPED SUPPORTS THEREFOR; HYDRAULICALLY, PNEUMATICALLY, OR ELECTRICALLY POWERED DEMOLITION, COMPACTION, AND EXTRACTION TOOLS, AND PARTS THEREOF; PNEUMATICALLY OPERATED UNDERGROUND PIERCING TOOL; VIBRATORY COMPACTORS AND PARTS THEREFOR; HIGH PRESSURE WATER JET SYSTEM FOR LOW IMPACT, CONTROLLED MATERIAL CLEANING, DEMOLISHING, AND REMOVAL CONSISTING OF A PUMP ASSEMBLY AND A POWER SOURCE, AND NOZZLES, SPRAY HEADS, SPRAY GUNS AND ADAPTERS; ROTARY HYDRAULIC IMPACT HAMMER; AND BOOM MOUNTED CRUNCHING JAW
Machinery