[ COMPUTER PROGRAMMING; SOFTWARE DEVELOPMENT; ENGINEEERING, RESEARCH, SURVEILLANCE, AND INSPECTION SERVICES IN THE UNDERGROUND MINE AND QUARRY EXPLORATION FIELD ]

'comput':1 'develop':4 'engine':5 'explor':17 'field':18 'inspect':9 'mine':14 'program':2 'quarri':16 'research':6 'servic':10 'softwar':3 'surveil':7 'underground':13

COMPUTER PROGRAMS RECORDED ON TAPES, CARDS, OR DISCS; COMPUTER PROGRAMS PERMITTING ONE TO EFFECT VENTILATING CALCULATIONS IN UNDERGROUND MINE OR QUARRY EXPLOITATIONS

'calcul':16 'card':6 'comput':1,9 'disc':8 'effect':14 'exploit':22 'mine':19 'one':12 'permit':11 'program':2,10 'quarri':21 'record':3 'tape':5 'underground':18 'ventil':15

P.C. VENT

Owners

Goods & Services