US PATENT SUBCLASS 976 / DIG 213
.~.~ Inspection vehicles [G21C-17/00D3]

Current as of: June, 1999
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976 /   HD   NUCLEAR TECHNOLOGY

DIG 207  DD  MONITORING; TESTING; MAINTAINING [G21C-17/00] {9}
DIG 210  DD  .~ Remote inspection of vessels (e.g., pressure vessels) [G21C-17/00D] {3}
DIG 213.~.~ Inspection vehicles [G21C-17/00D3]