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| Patents for Volstro Mfg Co., Inc. | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,153,369 | Oct. 20, 1964 | H.C. Voellm, Jr., M.E. Strohecker | Milling apparatus | milling machine accessories | |
| 3,249,017 | May 03, 1966 | M.E. Strohecker, H.C. Voellm, Jr. | Milling apparatus | milling machine accessories | |
| 3,589,237 | Jun. 29, 1971 | H.C. Voellm, Jr., M.E. Strohecker | Double cross-slide milling attachment | milling machine accessories | |