BAROMETER, FORTIN’S |
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For school/college laboratories. Nominal 6 mm bore glass tube.
With engine divided dual scales 675 to 820 x 1 mm Hg and 26.5
to 32.5 x 0.05 inch Hg. Verniers reading 0.05 mm and 0.002 inch.
Mounted on polished wooden board for wall mounting. Supplied
without mercury but with instructions for filling
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