Deposit and collection receptacles – Letter boxes – Signals
Patent
1980-08-22
1983-05-10
Zugel, Francis K.
Deposit and collection receptacles
Letter boxes
Signals
232 17, B65D 9100
Patent
active
043825419
ABSTRACT:
A mail box indicating device which permits a visual determination from a distance whether the mail box door has been opened. The mail box indicating device consists of a mail box with an upper and lower section separated by the mail box floor. A metallic strip is connected to the mail box floor in the lower section. The indicator means is attached at one end and has a magnet disposed at the other end which contacts the metallic strip until that end of the indicator means is released by opening the door of the mail box.
REFERENCES:
patent: 2613031 (1952-10-01), Joyce
patent: 3080107 (1963-03-01), Lindahl
patent: 3559878 (1971-02-01), Roeder
patent: 3650464 (1972-03-01), Lewis
patent: 3722460 (1973-03-01), James, Sr.
patent: 3794240 (1974-02-01), Myers
patent: 4182479 (1980-01-01), Swift
Aschenbrenner Peter A.
Wray James C.
Zugel Francis K.
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