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in cylinder machines

in cylinder machines · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD21F1/22
Official titlein cylinder machines
Display labelin cylinder machines
Total patents2

Filing trend

Year-over-year patent counts classified under this CPC code.

Not enough yearly data to assess filing trend yet.

Patents filed per year
YearPatents
20232

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.