Rare vintage Leon Appel Barometer Lviv 1930.
Posts tagged leon
VERY RARE ANTIQUE FRENCH BOURDON TUBE BAROGRAPH LEON MAXANT PARIS EARLY 20th
Bourdon-tube barometers usually consist of a sensor. Element that, as for an aneroid capsule, changes its. Shape under the influence. Of pressure changes pressure. Transducers and a transducer that transforms. The changes into a form directly usable by the. The display may be remote from the. Precise and stable digital instruments with. Quartz Bourdon tubes [...]