Resource Type
Counties
3 Matching Results
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Acetylene-Gas Generator.
Patent for improving acetylene gas generators.
Date:
April 1, 1919
Creator:
Muse, James A.
System:
The Portal to Texas History
Lifting-Jack.
Patent for a mechanical device improvements to lift heavy loads or to apply great forces.
Date:
April 29, 1913
Creator:
Graves, James M.
System:
The Portal to Texas History
Hoeing And Chopping Apparatus.
Patent for an improvement to hoeing and chopping apparatus by a supporting frame that operates transversely and vertically at the same time.
Date:
April 8, 1919
Creator:
Blankenstein, Richard J.
System:
The Portal to Texas History