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US1943080A
|
|
Corrugator
|
|
US1892213A
|
|
Cut-off mechanism
|
|
US1771260A
|
|
Paper-corrugating machine
|
|
US1771259A
|
|
Paper-corrugating machine
|
|
US1567656A
|
|
Sheet scoring and slotting mechanism
|
|
US1769883A
|
|
Sheet scoring and slotting mechanism
|
|
US1489135A
|
|
Cut-off mechanism
|
|
US1489890A
|
|
Sheet-slotting apparatus
|
|
US1642782A
|
|
Machine for making corrugated paper
|
|
US1479821A
|
|
Sheet stacker
|
|
US1532538A
|
|
Manufacture of shingle strips
|
|
US1487662A
|
|
Machine for cutting composition shingles
|
|
US1487661A
|
|
Machine for cutting composition shingles
|
|
US1455342A
|
|
Method of making shingle strips
|
|
US1446570A
|
|
Sheet stacker
|
|
US1462138A
|
|
Machine for making fiber shingles
|
|
US1441359A
|
|
Method of making shingle strips
|
|
US1176680A
|
|
Cut-off mechanism and controller therefor.
|
|
US1176576A
|
|
Cut-off mechanism for sheet material.
|
|
US1176575A
|
|
Cut-off mechanism for sheet material.
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