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US5289769A
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Method and apparatus for changing a printing sleeve
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US2635695A
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Sheet feeding mechanism
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US2387954A
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Paper feeding apparatus
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US2448285A
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Pen control mechanism for paper ruling machine
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US1707209A
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Suction-feed roller
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US1706952A
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Suction feed roller
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US1728327A
|
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Counting and tabbing apparatus
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US1635604A
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Sheet-feed-control apparatus
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US1700365A
|
|
Sheet-counting mechanism
|
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US1632945A
|
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Sheet-feeding apparatus
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US1744864A
|
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Sheet-feeding apparatus
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US1640108A
|
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Means for changing the direction of movement of sheets
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US1631617A
|
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Sheet-retarding means for sheet-feeding apparatus
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US1494303A
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Paper-feeding mechanism
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US1468798A
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Paper-ruling mechanism
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US1231483A
|
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Valve-changing device.
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US1207364A
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Paper-engaging element for paper-feeding machines.
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US1207365A
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Paper-stack-agitating means for paper-feeding machines.
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US1183628A
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Feed-interrupting mechanism.
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US1183627A
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Paper-supporting table for paper-feeding machines.
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