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PCE
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DIFF Subgroup
B21H 7/16

turbine blades; compressor blades; propeller blades

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons > turbine blades; compressor blades; propeller blades

CPC:

Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons (nails, pins B21G3/30) > turbine blades; compressor blades; propeller blades

No child classifications to compare. This is a leaf node in both IPC and CPC.