Apparatus for binding piles of sheets
United States Patent 2730142
US Patent References:
/0673588.html
- - 0673588

/0933476.html
- - 0933476

/0983520.html
- - 0983520

Stitching machine for sets of sheets
- - 1813035

Bookbinding machine
- - 2136773


Inventors:
Willi, Berberich
Publication Date:
01/10/1956
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Assignee:
Willi, Berberich
Primary Class:
140/92.300
Other Classes:
270/58.080
International Classes:
B42B5/12; B42B5/00
US Patent References:
2285911Paper cutting machine
2300544Machine and method for binding books
2377340Sheet binder