Installation for signalling deposit of mail in a letter box

Details Installation for signalling deposit of mail in a letter box Installation for signalling deposit of mail in a letter box

1981-06-16

1983-02-08

Mancene, Gene

Deposit and collection receptacles

Letter boxes

Signals

B65D 9100

Patent

active

043724825

ABSTRACT:
This invention concerns an installation for signalling the deposit of mail in a letter box, the letter box comprising a movable shutter member in front of a mail insertion slot and an access door for removal of the mail deposited in the letter box.

REFERENCES:
patent: 935934 (1909-10-01), Sieh et al.
patent: 1442578 (1923-01-01), Landrum

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