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US2956802A
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Sheet feeding devices
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US2971684A
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Scaning device for moving webs
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US2953291A
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Resilient bearers
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US2931962A
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Measurement and control of web tension
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US2883186A
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Web tension control mechanism
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US2779591A
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Device for automatically maintaining side registry in traveling webs
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US2773412A
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Electro-optical device for measuring thicknesses of coatings on materials
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US2699940A
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Registering means for sheet-fed printing presses
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US2695518A
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Pressure-indicating device for printing presses
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US2746749A
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Means for scanning traveling webs in printing machines and the like
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US2699939A
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Registering mechanism for sheet-fed printing presses
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US2699941A
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Registering and gripper means for sheet-fed printing presses
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US2651256A
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Impression cylinder for intaglio printing presses
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CA551976A
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Registering means for sheet-fed printing presses
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CA589214A
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Tensioning mechanisms for moving strands or webs
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CA551977A
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Registering and gripper means for sheet-fed printing presses
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CA555664A
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Web tension control mechanism
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CA567469A
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Tensioning mechanisms
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CA550670A
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Registering mechanisms for sheet-fed printing presses
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