Water Treatment. A handheld water treatment device, with bulb containing mercury, on wooden handle, stamped PAT No 391865, 21cm long. Water Pollution Abstracts Vol. 7, Importing Special Properties to Water, Abbott, R.H.S. B.P.391.865: III, Off J. Patents, 1933. Groups I and III, water is treated in an earthed metal tank by a device such as a glass bulb containing mercury and a gas e.g. neon, which does not react chemically with mercury. (1)
Water Treatment. A handheld water treatment device, with bulb containing mercury, on wooden handle, stamped PAT No 391865, 21cm long. Water Pollution Abstracts Vol. 7, Importing Special Properties to Water, Abbott, R.H.S. B.P.391.865: III, Off J. Patents, 1933. Groups I and III, water is treated in an earthed metal tank by a device such as a glass bulb containing mercury and a gas e.g. neon, which does not react chemically with mercury. (1)
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
