| 1967 VANDALE CORP Bunk Feeder Conveyor Assembly |
| 1962 CLARENCE Portable Bunk Feeder Patent Print |
| 1963 KNIGHT Cattle Bunk Feeder Filler Patent |
| 1969 DALE CORP VAN Bunk Feeder Patent Print Art |
| 1964 PETER RUTTEN Bunk Feeder Patent Print Art |
| 1967 VANDALE CORP Bunk Feeder Or The Like Patent |
| 1966 AVCO CORP Automatic Bunk Feeder Mechanism |
| 1964 BUSCHBOM Combined Hopper Bunk Feeder Patent 36622 |
| 1963 SIME SYLVAN Auger Bunk Feeder Patent Print |
| 1967 DALE CORP VAN Bunk Feeder Patent Print Art |
| 1966 BUSCHBOM Self Dumping Bunk Feeder Conveyor |
| 1967 BUSCHBOM FLOYD Bunk Feeder Patent Print Art |
| 1967 BUSCHBOM Bunk Feeder Conveyor Assembly |
| 1966 RAMBO Automatic Bunk Feeder Mechanism |
| 1966 VANDALE CORP Auger Type Dumping Bunk Feeder |
| 1966 BUSCHBOM Auger Type Dumping Bunk Feeder |
| 1967 BUSCHBOM Bunk Feeder Or The Like Patent |
| 1966 PATTERSON Bunk Type Dump Feeder Patent |
| 1969 BUSCHBOM FLOYD Bunk Feeder Patent Print Art |
| 1964 P & D SALES & MFG CO Bunk Feeder Patent |
| 1962 HACKER Bunk Feeder Control Mechanism Patent |