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| Patents for Issac Fischer Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,246X | Jun. 14, 1834 | I. Fischer, Jr. | Manufacturing sandpaper | sanding machines | |
| 8,247X | Jun. 14, 1834 | I. Fischer, Jr. | Manufacturing sandpaper | sanding machines | |