Patent classifications
Y
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Y10
TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Y10T
TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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428/00
Stock material or miscellaneous articles
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Y10T428/12
All metal or with adjacent metals
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Y10T428/12493
Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
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Y10T428/12771
Transition metal-base component
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Y10T428/12861
Group VIII or IB metal-base component
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Y10T428/12917
Next to Fe-base component
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Y10T428/12924
Fe-base has 0.01-1.7% carbon [i.e., steel]
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