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Patents for Samuel J. Spray | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 103,892 | Jun. 07, 1870 | J. Kauffman | Improvement in sawing-machines | |
![]() | 106,187 | Aug. 09, 1870 | C. Mitzelfeld | Improvement in saws | |
![]() | 109,005 | Nov. 08, 1870 | J.T. Hall | Improvement in lath-machines |