Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
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
Load children
B31B
MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
Load children
2160/00
Shape of flexible containers
Load children Filter patents View analytics View as hierarchy
B31B2160/10
rectangular and flat, i.e. without structural provision for thickness of contents
Load children Filter patents View analytics View as hierarchy
B31B2160/102
obtained from essentially rectangular sheets
Filter patents View analytics View as hierarchy