Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
B31D3/00—Making articles of cellular structure, e.g. insulating board
B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
Verfahren zur Herstellung des magnetisch wirksamen Eisens elektrischer Maschinen durch hochkantiges Aufwickeln eines fortlaufenden, gezahnten Blechstreifens
Verfahren und Vorrichtung zum Spannen und Loesen von durch Ringspannfedern auf ihren Naben befestigten Kreismessern zum Schneiden von Bahnen aus Papier, Karton, Gewebe od. dgl.