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| Patents for Yehan Numata | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,166,850 | Jan. 26, 1965 | T. Yamazawa | Micrometers | micrometers | |
| 3,514,865 | Jun. 02, 1970 | Y. Karahashi | Micrometer Having a Non-Rotating Spindle | micrometers | |
| 3,877,149 | Apr. 15, 1975 | M. Masuda | Accuracy Regulating Means for a Linear Micrometer | micrometers | |