Spiral binder

Details Spiral binder Spiral binder

1995-10-06

1996-12-17

Davis, Antoine Duval

Machines not elsewhere specified

Material working, abrading, or founding machinery

Cutting

Patent

active

D03766071

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patent: 4378822 (1983-04-01), Morris
patent: 4610590 (1986-09-01), Pigna

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