Offset lithography | 23 | 2058578 2058579 2058581 2058582 2058583 2058584 2058585 2058587 2058588 2058589 |
Offset lithography and Recess | 10 | 2353972 2112160 2112161 2112162 2112163 2112164 2112165 2112166 2058586 2353975 |
Photogravure and Recess | 2 | 2058577 2058580 |