Display unit with a removable indicator panel

Details Display unit with a removable indicator panel Display unit with a removable indicator panel

1980-04-04

1982-03-23

Pitts, Harold I.

Communications: electrical

Audible indication

Ultrasonic pest control

340286K, G09F 314

Patent

active

043215874

ABSTRACT:
A display unit includes a casing formed with an opening and a removable panel adopted to be mounted in the opening. The casing has a groove formed in a portion of the edge defining the opening. The removable panel has a projection extending outwards from a portion of its perimeter and engageable in the groove. The removable panel is mounted in the opening in the casing with the projection engaged in the groove.

REFERENCES:
patent: 1751426 (1930-03-01), Sprenger
patent: 2871450 (1959-01-01), Podoloff
patent: 3557748 (1971-01-01), Bowditch
patent: 3675242 (1972-07-01), Hammell
patent: 3681552 (1972-08-01), Bailey
patent: 3763400 (1973-10-01), Layton
patent: 3969721 (1976-07-01), Chadwick
patent: 4118991 (1978-10-01), Bevacqua

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