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| Patents for Joseph C. Schaf Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,523,723 | Jan. 20, 1925 | J.C. Schaf, Jr. | Universal holding carriage for test stands and lathes | metal lathe accessories and attachments | |
| 2,092,187 | Sep. 07, 1937 | J.C. Schaf, Jr. | Device for sharpening blades | ||