Retractable data display unit

Sales and advertising equipment – Signs or display forms – Fastener or support for card – price tag – etc.

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Details

D20 21, D19 76

Patent

active

D03222870

REFERENCES:
patent: D117447 (1939-11-01), Campbell et al.
patent: D156538 (1949-12-01), Kingmon
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patent: 2828563 (1958-04-01), Guess
patent: 3859744 (1975-01-01), Holmes
patent: 4129215 (1978-12-01), Halm
patent: 4182059 (1980-01-01), Greene
patent: 4270291 (1981-06-01), Babberl

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