Sales and advertising equipment – Signs or display forms
Patent
1980-06-23
1982-07-20
Kemper, Catherine E.
Sales and advertising equipment
Signs or display forms
D10116, D2003
Patent
active
D02654865
REFERENCES:
patent: 2102905 (1937-12-01), Magee
Lundell Neil C.
Prowler Gilbert S.
Kemper Catherine E.
Marrs Roger A.
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