| Malsbary Steam Cleaners for Farm Machinery |  |
| McDonald Century Line Adapto Jets |  |
| MERCK Pro-Strep Penicillin and Streptomycin |  |
| Minneapolis-Moline Automotive Industries |  |
| Minneapolis-Moline More for Your Money |  |
| Mobil Oil, Mobile Lube and Mobile Grease |  |
| Monsanto Lion E-2 Ammonium Nitrate |  |
| MoorMan's Good Results through Research and Service |  |
| New Holland "33" Crop Chopper |  |
