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All Patents of Type: rules
Patents 1 - 15 of 428
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453XMay 17, 1803J.J. HawkinsPentegraph and parallel rulerparallel rules
500XNov. 30, 1803J. FairbanksCylindric ruler for ruling paperruling machines
866XApr. 29, 1808B. DearbornCombination Rule/Bevelfolding rules
2,331XJun. 21, 1815L. Hedge, T.M. PomroySpring Pen Rulerrules
2,746XMar. 03, 1817L. HedgeRevolving rulerrules
6,998XApr. 14, 1832J. CarringtonParallel rulerrules
7,591XMay 22, 1833D. WilliamsTailor's Measurerules
7,817XNov. 19, 1833B.J. LewisTailor's Square and Measuresquares
8,783XApr. 22, 1835L. HedgeCarpenter's rule jointfolding rule joints
9,110XSep. 18, 1835J.S. RockefellowTailor's Measurerules
9,219XOct. 31, 1835F.A. FairchildTailor's Measuretape measures
185Apr. 29, 1837L. HedgeDouble-Centered Joint for Rulesfolding rule joints
RX-11Aug. 31, 1839D. WilliamsImprovement in the Art of Tailoringrules
2,907Jan. 10, 1843J.P. SmithMerchant's Slide Rulescales
3,590May 17, 1844C. RossRevolving Board Rulelumber rules
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