TREA

of buttons

Follow

Industry

  • CPC
  • B21F45/26
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B21Mechanical metalworking B21FWORKING OR PROCESSING OF METAL WIRE B21F45/00Wire-working in the manufacture of other particular articles

Current Industry

B21F45/26of buttons
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    1498972
    • Patent number 1,498,972
    • Issue date Jun 24, 1924
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1332539
    • Patent number 1,332,539
    • Issue date Mar 2, 1920
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...