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It has two thermometers molded on metal scale Graduation - 10 to 50º C. Bulb of one thermometer is covered with muslin which is kept moist by being connected to a reservoir of water. Mounted in a w...
It has two thermometers molded on metal scale Graduation - 10 to 50º C. Bulb of one thermometer is covered with muslin which is kept moist by being connected to a reservoir of water. Mounted in a w...