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Primary view of Steam-Condenser
Hartman, Gus
July 13, 1909
Primary view of Draft-Equalizer.
Zollner, Matthes
July 3, 1900
Primary view of Cultivator
Zöllner, Matthes & Zöllner, Carl
July 3, 1900
Primary view of Seeding-Machine.
Zollner, Matthes & Zollner, Carl
July 3, 1900
Primary view of Acetylene-Gas Generator.
Hartman, Gus
July 31, 1900
Primary view of Improvement in Farm-Fences.
McKenzie, Winfield S.
July 29, 1873
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