Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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B21J
FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
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5/00
Methods for forging, hammering, or pressing; Special equipment or accessories therefor
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B21J5/02
Die forging; Trimming by making use of special dies; ; Punching during forging
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B21J5/022
Open die forging
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