G09F 11/20

The elements being in the form of stiff flaps, boards, cards or

Official title: the elements being in the form of stiff flaps, boards, cards or the like

G09F11/20 (The elements being in the form of stiff flaps, boards, cards or) appears on 3 US grants and 6 published applications in this corpus.

Search patents in G09F
Granted patents
3
Published applications
6
Assignees
3
Inventors
13
Latest grant
7 Nov 2023