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Patents for Andrew J. Hamilton
Patents 1 - 15 of 19
First set of recordsNext set of recordsLast set of records
295,100Mar. 11, 1884S.H. BellowsCombined Bevel and T-Squareprotractors
297,056Apr. 15, 1884S.H. BellowsCaliper Rulerules
318,051May 19, 1885L.S. StarrettScrew Thread Gagethread gages
318,984Jun. 02, 1885J.J. HedgesBevel for Draftsmen or Artificersprotractors
403,726May 21, 1889S.H. BellowsMicrometer Gagemicrometers
429,939Jun. 10, 1890C.L. MorseValve-reseating machine
448,089Mar. 10, 1891L.S. StarrettMicrometer Gagemicrometers
474,699May 10, 1892L.S. StarrettBevel Protractorprotractors
539,759May 21, 1895C.P. Fay, L.S. StarrettCalipers and Dividersdividers
556,703Mar. 17, 1896C.P. Fay, L.S. StarrettSurface Gagesurface gauges
570,056Oct. 27, 1896C.F. RichardsonSpirit Levellevels
582,154May 04, 1897E.C. ClappMicrometer Gagemicrometers
582,517May 11, 1897S.H. BellowsShaft Levelmachinist levels
D29,875Dec. 27, 1898B.E. SawyerDesign for a Combination Squaretry squares
624,875May 09, 1899W.D. Arnott, B.E. SawyerScrew Driverscrewdriver blades
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