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Class Information
Number: 976/DIG.170
Name: Nuclear technology > Pressure vessels; containment vessels [g21c-13/00] *** (chemical or physical processes b01j-3/00; pressure vessels in general f16j-12/00) > Details (e.g., seals, supporting constructions, ventillating arrangements, tube joints with a vessel wall) [g21c-13/02] > Seals (e.g., for pressure vessels or containers [g21c-13/02d] > For container apertures [g21c-13/02d2]

Patents under this class:

Patent Number Title Of Patent Date Issued
4782863 Removable shutter for an orifice accessible only through a narrow passage Nov. 8, 1988
4584162 Pipe plug and remote installation equipment therefor Apr. 22, 1986
4519519 Fuel transfer tube quick opening hatch May. 28, 1985
4514110 Gate assembly for ponds Apr. 30, 1985
4436692 Plug for reactor pressure vessel nozzle Mar. 13, 1984
4376352 Personnel air lock Mar. 15, 1983
4375104 Pool gateway seal Feb. 22, 1983
4355000 Lightweight, removable gate seal Oct. 19, 1982
4238289 Nuclear reactor condenser door arrangement Dec. 9, 1980

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