Home| FAQSearch:Advanced|Person|Company| Type|ClassLogin
Quick search:
Patent number:
Patent Date:
Patents Granted on 1820-09-__
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
3,231XSep. 07, 1820E. WadsworthWeighing machines
3,232XSep. 13, 1820J. HenryConstruction of clocksclockmaker
3,233XSep. 13, 1820J. HenryMode of finding the longitudesurveyor
3,234XSep. 20, 1820R.L. StevensPloughplows or ploughs
3,235XSep. 20, 1820J. Balthorpe (Balltlirope)Double shovel ploughplows or ploughs
Toggle print mode
Show pictures

Copyright © 2002-2018 - DATAMP