THE SERVICING AND REPAIR OF SEISMOGRAPHIC EQUIPMENT; NAMELY, RECORDERS AND RECORDER SYSTEMS; CABLES AND LINE-CHECK METERS FOR OTHERS

'cabl':13 'check':17 'equip':7 'line':16 'line-check':15 'meter':18 'name':8 'other':20 'record':9,11 'repair':4 'seismograph':6 'servic':2 'system':12

MULTI-CONDUCTOR GEOPHYSICAL CABLES; SEISMOGRAPH (GEOPHYSICAL) RECORDER INPUT AND UNSCRAMBLER SYSTEMS; LINE-CHECK METERS

'cabl':5 'check':15 'conductor':3 'geophys':4,7 'input':9 'line':14 'line-check':13 'meter':16 'multi':2 'multi-conductor':1 'record':8 'seismograph':6 'system':12 'unscrambl':11

GEO-CABLE

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