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6
Combination Drill Bit and Drill Shank
Patent for "Improvements in Combination Drill-Bits and Drill-Shanks" (lines 6-7) including illustrations.
Date:
December 30, 1919
Creator:
Humason, Granville A.
Object Type:
Patent
System:
The Portal to Texas History
Drill-Bit.
Patent for improvement to drill-bits. The object of the invention is to provide a bit of the character described which is especially adapted for deep well drilling by the rotary process.
Date:
December 30, 1919
Creator:
Humason, Granville A.
Object Type:
Patent
System:
The Portal to Texas History
[Letter from G. W. Hardy to W. J. Bryan, November 30, 1939]
Letter from G. W. Hardy to W. J. Bryan describing his thankfulness for his friends. On the back is a typed out soliloquy from Hamlet.
Date:
November 30, 1938
Creator:
Hardy, G. W.
Object Type:
Letter
System:
The Portal to Texas History
[Letter from Charlyne Creger to Rigdon Edwards, June 30, 1993]
Letter from Charlyne Creger to Rigdon Edwards telling him to make sure her name is written correctly as she is listed as a donor for the "Plague Jewel", about Steve Morgan giving her a set of drawings, and the medicine she has been taking.
Date:
June 30, 1993
Creator:
Creger, Charlyne
Object Type:
Letter
System:
The Portal to Texas History
Locking Mechanism
Patent for locking mechanism, particulalry used in locking liquid dispensing machines.
Date:
January 30, 1917
Creator:
Bradley, Richard C.
Object Type:
Patent
System:
The Portal to Texas History
[Letter from H. Howard to J.F. Higgason, March 30 1888]
Letter from J.F. Higgason to H. Howard. The letter is dated March 30, 1888.
Date:
March 30, 1888
Creator:
Higgason, J.F.
Object Type:
Text
System:
The Portal to Texas History