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Banks William Burkhardt: Apparatus for determining physical properties of materials. Automation Prod, February 19, 1969: GB1143050-A (2 worldwide citation)

1,143,050. Measuring physical properties electrically. AUTOMATION PRODUCTS Inc. July 17, 1967 [July 22, 1966], No.32794/67. Heading G1N. In apparatus for measuring e.g. viscosity, density &c. of a fluid by the frequency or amplitude of vibration of a rod protruding through a support in a wall of the ...


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