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| Patents for Abenaque Machine Works | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 612,756 | Oct. 18, 1898 | J.A. Ostenberg | Gas Engine | |
 | 648,520 | May 01, 1900 | J.A. Ostenberg | Circuit Breaker for Gas Engines | |
 | 713,792 | Nov. 18, 1902 | J.A. Ostenberg | Explosive Engine | |
 | 713,793 | Nov. 18, 1902 | J.A. Ostenberg | Explosive Charge | |
 | 718,511 | Jan. 13, 1903 | J.A. Ostenberg | Explosion Engine | |