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Patents for Leonard L. Davis
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
68,961Sep. 17, 1867L.L. DavisImprovement in Adjustable Spirit Levelsmetallic levels
75,534Mar. 17, 1868L.L. DavisImprovement in Adjustable Spirit Levelslevels
D3,195Sep. 22, 1868L.L. DavisDesign for a Spirit Levelmetallic levels
167,311Aug. 31, 1875L.L. DavisImprovement in Bench-Planesplane adjustment mechanisms
D10,014May 29, 1877L.L. DavisDesign for Spirit Levelsmetallic levels
D10,015May 29, 1877L.L. DavisDesign for Spirit Levelsmetallic levels
D10,016May 29, 1877L.L. DavisDesign for Spirit Levelsmetallic levels
D10,017May 29, 1877L.L. DavisDesign for Spirit Levelsmachinist levels
288,624Nov. 20, 1883L.L. DavisSpirit Level and Plumbmetallic levels
297,574Apr. 29, 1884L.L. DavisSpirit Levelmetallic levels
306,690Oct. 14, 1884R.D. JohnsonBit-stock (chuck)
342,727May 25, 1886J.A. BolenRatchet bit-brace
360,650Apr. 05, 1887L.C. BolenRatchet bit brace
432,180Jul. 15, 1890L.L. DavisBit-stock
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