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for wings which lift during movement {, operated by their own weight}

for wings which lift during movement {, operated by their own weight} · Cooperative Patent Classification (CPC)

Building, mining, and civil engineering structures.

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CPC classification statistics
Metric	Value
CPC code	E05F1/04
Official title	for wings which lift during movement {, operated by their own weight}
Display label	for wings which lift during movement {, operated by their own weight}
Total patents	4

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

Filing activity appears stable based on the most recent years.

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