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US2255084A
|
|
Sheet-spacing machine
|
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US2151228A
|
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Sheet feeding and forwarding mechanism
|
|
US2101342A
|
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Duplex envelope
|
|
US1897641A
|
|
Adjustable feed table for envelope-making and like machines
|
|
US1886728A
|
|
Envelope-making machine
|
|
US1873850A
|
|
Gumming mechanism for envelope-making machines
|
|
US1459746A
|
|
Web-severing device
|
|
US1378194A
|
|
Paper-feeding mechanism
|
|
US1462149A
|
|
Machine for making window envelopes
|
|
US1385468A
|
|
Means for feeding sheet material
|
|
US1345950A
|
|
Transferring device
|
|
US1302211A
|
|
Cutting-machine.
|
|
US1340909A
|
|
Machine for attaching strings to envelops
|
|
US1332856A
|
|
Safety device for paper-cutting machines
|
|
US1230771A
|
|
Feeding and transferring mechanism.
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