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Patents for Wendell A. Barker | |||||
Number | Date | Patentee | Title | Type | |
1,373,789 | Apr. 05, 1921 | W.A. Barker | Revolving-jaw chuck | metal lathe chucks | |
1,389,731 | Sep. 06, 1921 | W.A. Barker | Chuck | metal lathe chucks |