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Advancing material of indeterminate length
Means to engage longitudinally spaced modifications in material
Including detail of prong shape or construction
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Pin belt for movement of perforated strip
Advancing material of indeterminate length – Means to engage longitudinally spaced modifications in material – Including detail of prong shape or construction
Patent
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Pinwheel for paper feeding
Advancing material of indeterminate length – Means to engage longitudinally spaced modifications in material – Including detail of prong shape or construction
Patent
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