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Patents for James W. Batchelder | |||||
Number | Date | Patentee | Title | Type | |
2,418,217 | Apr. 01, 1947 | J.W. Batchelder | Thread Rolling | thread rolling machines | |
2,624,218 | Jan. 06, 1953 | J.W. Batchelder, R.E. Flanders | Thread Rolling Machine | thread rolling machines |