| Brevetto: | US 1186639 |
| Titolo: | Constant Speed Integrator |
| Data: | 13.06.1916 |
| Luogo: | |
| Nazione: | Stati Uniti |
| Persona: | D. R. Yarnall |
| Ditta: | |
| Link interni: | Planimeter |
| Keywords: | |
| Link al brevetto: (without guarantee) |  US1186639 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=US1186639) (espacenet), US1186639 (http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/FPTO/srchnum.htm&r=1&f=G&l=50&s1=1186639.PN.&OS=PN/1186639&RS=PN/1186639) (uspto) |
Aus der Patentschrift US1186639