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Nils Gustaf Dalén *1869, † 1937 "For his invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys" more
Nils Gustaf Dalén *1869, † 1937
"For his invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys" more
"For his invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys"
more