Sales and advertising equipment – Signs or display forms – Attachable to vertical surface or hanging type
Patent
1982-01-18
1984-08-21
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
Attachable to vertical surface or hanging type
Patent
active
D02752077
REFERENCES:
patent: 777482 (1904-12-01), McDonald
patent: 1567459 (1925-12-01), Nugent
patent: 2689570 (1954-09-01), Pursey
patent: 3016642 (1962-01-01), Kowalski
patent: 3826026 (1974-07-01), Bevan
Kemper Catherine E.
Yarder Manufacturing
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