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Polarimeter |
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Polarisation meter after Biot |
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Polarisation microscope |
 ,  ,  |
Polarized Telegraph Relay |
 ,  ,  |
Portable barometer with tripod and leather case |
 ,  |
Portable Galvanic Battery for Electrotherapy |
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portable potentiometer |
 ,  |
Portable reflective telescope |
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Porte-lumiere after Gambey |
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Porte-lumiere, Heliostat mirror |
