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Patents for John P. Summers | |||||
Number | Date | Patentee | Title | Type | |
92,124 | Jun. 29, 1869 | J.P. Summers | Improvement in sawing-machines | drag saws | |
133,497 | Nov. 26, 1872 | J.P. Summers | Improvement in sawing-machines | reciprocating sawmills |