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| Patents for Walter Hoier | |||||
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| Picture | Number | Date | Patentee | Title | |
| 2,091,000 | Aug. 24, 1937 | W. Hoier | Internal Milling Machine | ||
| 2,365,078 | Dec. 12, 1944 | W. Hoier | Rotary Table Attachment for Milling Machines | ||
| 2,422,414 | Jun. 17, 1947 | W. Hoier | Index Milling Machine | ||
| 2,458,597 | Jan. 11, 1949 | R.N. Clifton, W. Hoier | Milling Machine | ||