Swiss patents on gas turbine plants (1925-42), classified by Swiss patent classification, supplemented by inventor index, assignee index, and patent, number index, applicable with microfilm of complete text and plates of all patents cited.
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Swiss patents on gas turbine plants (1925-42), classified by Swiss patent classification, supplemented by inventor index, assignee index, and patent, number index, applicable with microfilm of complete text and plates of all patents cited.
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Swiss patents on gas turbine plants (1925-42), classified by Swiss patent classification, supplemented by inventor index, assignee index, and patent, number index, applicable with microfilm of complete text and plates of all patents cited.