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| Patents for John M. Klein | |||||
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| Number | Date | Patentee | Title | Type | |
| 407,666 | Jul. 23, 1889 | J.M. Klein | Lathe Carrier | metal lathe accessories and attachments | |
| 481,179 | Aug. 23, 1892 | J.M. Klein | Wire stretcher or clamp | ||