US PATENT SUBCLASS 114 / 116
BULKHEADS AND DOORS

Current as of: June, 1999
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114 /   HD   SHIPS

116BULKHEADS AND DOORS {1}
117  DF  .~> Doors {2}

DEFINITION

Classification: 114/116

Inventions in bulkheads usually adapted to form watertight compartments of vessels.