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| Patents for Alwin B. Bachmann | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,575,307 | Mar. 02, 1926 | A.B. Bachmann | Flexible-shaft bench grinder | flexible shafts | |
| 1,672,744 | Jun. 05, 1928 | A.B. Bachmann | Milling Machine | milling machines | |
| RE17,959 | Feb. 10, 1931 | A.B. Bachmann | Milling Machine | milling machines | |
| 1,918,952 | Jul. 18, 1933 | W. Krause, A.B. Bachmann | Flexible Shaft Bench Grinder | grinders | |