Title | Date | Type | ||
---|---|---|---|---|
26 | Royal Fuel Co., Copy of Cutting Machine | 1922-05-25 | Image/StillImage | |
27 | Denver Rock Drill Co., Copy of Drill Sharpener Machine | 1923-01-31 | Image/StillImage | |
28 | Dey & Hoppangh, Copy of Etching of Roller Mill | 1920-01-13 | Image/StillImage | |
29 | Dey & Hoppangh, Copy of Etching of Roller Mill | 1920-01-31 | Image/StillImage | |
30 | Dey & Hoppangh, Copy of Etching of Roller Mill | 1920-01-13 | Image/StillImage | |
31 | Dey & Hoppangh, Copy of Etching of Roller Mill | 1920-01-13 | Image/StillImage | |
32 | Dey & Hoppangh, Copy of Etching of Roller Mill | 1920-01-13 | Image/StillImage |