Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B63
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
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B63J
AUXILIARIES ON VESSELS
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4/00
Arrangements of installations for treating; ballast water,; waste water, sewage,; sludge, or refuse; , or for preventing environmental pollution not otherwise provided for;
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B63J4/002
for treating ballast water
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