Signature |
Maker |
Instruments |
Comments |
Location |
References |
PORRO, IGNAZIO |
Italy; France; Italy, 1795-1875, MIM OIM SIM |
Prism Monocular with Telemeter, 1849 = SWE; Cylindrical Slide Rule = SWE. |
invented and made the first prism monocular; retired in 1861. |
Florence; Paris; Milan. |
Pipping 1; Dewhirst; Brenni 1; RSW. |
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