|
| Patents for B43K 1 - Nibs; Writing- points (1,712) |
|---|
| 01/11/1977 | US4002411 Ball type dispensing package | | 12/21/1976 | US3998982 Method of cutting and grinding porous pen tips | | 08/31/1976 | US3977798 Tubular writing pen | | 07/13/1976 | US3969027 Writing instrument | | 06/29/1976 | US3966336 Ball type marker construction which eliminates stick-slip phenomena | | 06/01/1976 | US3960455 Flexible double ball-point pen | | 05/18/1976 | US3957379 Fountain pen | | 04/13/1976 | US3950106 Embouchure pen | | 03/23/1976 | US3945869 Felt tip pens, thermoplastic resins | | 03/09/1976 | US3942903 Unitary porous themoplastic writing nib | | 01/20/1976 | US3933965 Process for the manufacture of rods of thermoplastic material, having internal capillary ducts, for the preparation of pen nibs incorporating capillary ink ducts | | 01/13/1976 | US3932044 Pen point for writing instruments |
|