| Country/Region of Manufacture | United States |
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Check the listing for details. Vintage 1967 Daniel Steam-Liquid Orifice Flow Slide Rule Calculator. Condition: Used. Listed at 17.99 USD. This vintage 1967 Daniel Steam-Liquid Orifice Flow Slide Rule Calculator was manufactured in the United States. It is a collectible item related to engineering and science from the period of 1930 to now.