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Class Information
Number: 976/DIG.156
Name: Nuclear technology > Sheilding structurally associated with the reactor [g21c-11/00] > Biological sheilding; neutron and gamma shielding [g21c-11/02] *** (in general dig. 319+) > In apertures or channels through a wall [g21c-11/02d]

Patents under this class:

Patent Number Title Of Patent Date Issued
4948981 Primary manway shielding and exhaust covers for a steam generator Aug. 14, 1990
4587082 Passage through the wall of a reinforced concrete pressure vessel May. 6, 1986
4126515 Nuclear reactor cavity streaming shield Nov. 21, 1978
4071404 Radiation shielding device for nuclear facilities Jan. 31, 1978

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