ATC Tractors
American Tractor Corporaton (ATC) was started when the Rojtman family purchased a factory in Churubusco, Indiana, USA. After researching US and German army tanks and crawlers, ATC began producing crawler-tractors under the TerraTrac brand. In late 1956, Case merged with ATC. ATC formed the core of Case's crawler and industrial line. By the late 1960s, Case shifted all production to Burlington, Iowa, USA and sold the Churubusco factory.
Terratrac - Yahoo! discussion group
ATC Tractors
| ATC 200 | Power: 36 hp | Date of manufacture : 1954 - 1955 |
| ATC 256 | Power: 36 hp | Date of manufacture : 1955 - 1956 |
| ATC 300 | Power: 36 hp | Date of manufacture : 1954 - 1955 |
| ATC 356 | Power: 36 hp | Date of manufacture : 1955 - 1956 |
| ATC 400 | Power: 42 hp | Date of manufacture : 1954 - 1955 |
| ATC 456 | Power: 42 hp | Date of manufacture : 1955 - 1956 |
| ATC 500 | Power: 50 hp | Date of manufacture : 1954 - 1955 |
| ATC 556 | Power: 0 | Date of manufacture : 1955 - 1957 |
| ATC 656 | Power: 62 hp | Date of manufacture : 1955 - 1957 |
| ATC DT-34 | Power: 31 hp | Date of manufacture : 1952 - 1954 |
| ATC GT-25 | Power: 25 hp | Date of manufacture : 1950 - 1953 |
| ATC GT-28 | Power: 0 | Date of manufacture : 1953 - 1954 |
| ATC GT-30 | Power: 33 hp[B] | Date of manufacture : 1951 - 1954 |
| ATC GT-32 | Power: 0 | Date of manufacture : 1953 - 1954 |
| ATC GT-34 | Power: 30 hp | Date of manufacture : 1951 - 1954 |
| ATC M-2 | Power: 0 | Date of manufacture : 1952 - 1953 |
| ATC M-3 | Power: 0 | Date of manufacture : 1953 - 1956 |
| ATC M-4 | Power: 0 | Date of manufacture : 1954 - 0000 |