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Planimeter

"A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape." - (en.wikipedia.org 17.11.2021)

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Welti-féle ortogonális planiméterPolarplanimeter und Zirkel der Firma R. ReissPolarplanimeter der Firma Alfred J. Amsler & CoKugelrollplanimeter der Firma G. Coradi, ZürichScheibenplanimeter No 53 nach Hofrat HansenKompensations-Polarplanimeter der Firma Dennert & Pape
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