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US3683757A
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Running feedback adjustment of envelope making machines
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US3550510A
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Automated adjustment of envelope machines
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US3582437A
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Apparatus for the high speed application of patches to envelope blanks
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US3429238A
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Automation of envelope machine adjustments
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GB1123502A
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Side flap folding section of a rotary envelope making machine
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US3186316A
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Scoring and folding mechanisms of an envelope making machine and drive therefor
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US3288037A
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Side flap folding section of a rotary envelope making machine
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US3140090A
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Holder for supporting a stack of blanks in an envelope making machine
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US3241465A
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Method and apparatus for making envelopes
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US3172655A
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Mechanism for removing blanks or sheets from a stack
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US3100110A
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Apparatus for removing blanks or sheets from the top of a supply stack
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US3086338A
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Apparatus for collecting and banding envelopes
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US3096977A
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Apparatus for squamiform lapping of blanks
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US3097578A
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Apparatus for folding the closure flaps of envelopes and similar articles
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US3103842A
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Apparatus for removing clippings in the production of window envelopes
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US3044767A
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Mechanism for separating, aligning and timing movement of envelope blanks
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US3040488A
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Method and apparatus for banding envelopes into packs
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US3159069A
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Apparatus for producing openings in sheet material for the manufacture of window envelopes
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US3085762A
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Roll changing apparatus
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US3019886A
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Apparatus for counting and banding envelopes and the like
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