Hart-Parr Crop Maker 17-27 Tractors
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| Power: 30 hp Date of manufacture : 1916 - 1917 |
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Other Tractors
| Hart-Parr 28-50 | Power: 55 hp | Date of manufacture : 1927 - 1930 |
| Hart-Parr 28-44 | Power: 48 hp | Date of manufacture : 1930 - 1937 |
| Hart-Parr 40-80 | Power: 110 hp | Date of manufacture : 1908 - 1909 |
| Hart-Parr 60-100 | Power: 111 hp | Date of manufacture : 1911 - 1912 |
| Hart-Parr Crop Maker 17-27 | Power: 30 hp | Date of manufacture : 1916 - 1917 |
| Hart-Parr Little Devil 25-22 | Power: 24 hp | Date of manufacture : 1914 - 1916 |
| Hart-Parr New Hart-Parr | Power: 33 hp | Date of manufacture : 1918 - 1919 |
| Hart-Parr Oil King 23-35 | Power: 38 hp | Date of manufacture : 1916 - 1919 |
| Hart-Parr Old Reliable 30-60 | Power: 66 hp | Date of manufacture : 1907 - 1918 |