Rotatable sign with counterweight

Details Rotatable sign with counterweight Rotatable sign with counterweight

1989-12-04

1991-08-13

Burke, Wallace R.

Sales and advertising equipment

Signs or display forms

Rotatable display

Patent

active

D03190781

REFERENCES:
patent: D193758 (1962-10-01), Blommel
patent: 1930018 (1933-10-01), Norman
patent: 2050779 (1936-08-01), Blanchard
patent: 2993287 (1961-07-01), Goesle
patent: 3088235 (1963-05-01), Kies
patent: 3579880 (1971-05-01), Murphy
patent: 3636912 (1972-01-01), Kamp
patent: 4910898 (1990-03-01), Hector
patent: 4972614 (1990-11-01), Hector
Signs of the Times, Jun. 1988, p. 153, lower right corner, outdoor display sign.

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