Maintenance and repair of underwater, underwater and through-earth boundary, and underwater and through-air boundary communication systems

'air':17 'boundari':11,18 'communic':19 'earth':10 'mainten':1 'repair':3 'system':20 'through-air':15 'through-earth':8 'underwat':5,6,13

Engineering services for wireless underwater, underwater and through-earth boundary, and underwater and through-air boundary communications

'air':17 'boundari':11,18 'communic':19 'earth':10 'engin':1 'servic':2 'through-air':15 'through-earth':8 'underwat':5,6,13 'wireless':4

Transceivers; underwater two-way voice and data communication receivers and transmitters; magnetic voice and data communication transmitters; magnetic voice and data communication receivers; magnetic voice and data communication transceivers; antennas for magnetic communication; computer software for sending and receiving magnetic communications

'antenna':31 'communic':9,17,23,29,34,42 'comput':35 'data':8,16,22,28 'magnet':13,19,25,33,41 'receiv':10,24,40 'send':38 'softwar':36 'transceiv':1,30 'transmitt':12,18 'two':4 'two-way':3 'underwat':2 'voic':6,14,20,26 'way':5

DIVERCOMM

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