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Acetylene-Gas Generator.
Patent for certain new an useful improvements in acetylene gas apparatus, including instructions and illustrations.
Date:
January 30, 1900
Creator:
Ruthenberg, William
System:
The Portal to Texas History
Harrow-Cultivator Attachment
Patent for a harrow attachment for cultivators. Illustrations included.
Date:
July 30, 1912
Creator:
Kovar, William L. & Wlha, William
System:
The Portal to Texas History