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| Patents for Gibraltar Mfg. Co. | |||||
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| Number | Title | Classification(s) | |||
| 2,552,315 | Self-starting synchronous electric motor | 310/163, 310/172 | |||
| 2,638,068 | Adjustable sewing machine feed | 112/316, 74/53, 74/569 | |||
| 2,704,560 | Tilt arbor bench saw | 83/473, 83/477.2 | |||
| 2,835,995 | Animated device | 362/808, 40/414, 40/429, 968/404 | |||