Sales and advertising equipment – Signs or display forms – Attachable to vertical surface or hanging type
Patent
1983-10-31
1986-07-08
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
Attachable to vertical surface or hanging type
Patent
active
D02845890
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patent: 4292752 (1981-10-01), Clark
patent: 4425727 (1984-01-01), Waldekrantz
Copeland T. D.
Kemper Catherine E.
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