Deposit and collection receptacles – Letter boxes – Signals
Patent
1979-08-17
1981-09-22
Frazier, Roy D.
Deposit and collection receptacles
Letter boxes
Signals
A47G 2912
Patent
active
042905494
ABSTRACT:
A rural delivery mail box, including a flag at its side, and another flag at its rear; both of the flags being pivotable automatically between a displayed, and a stored-away, position, when the mail box door is pivoted open by the mailman.
REFERENCES:
patent: 1925227 (1933-09-01), Black
patent: 1929965 (1933-10-01), Black et al.
patent: 2098242 (1937-11-01), Holmes
patent: 3034706 (1962-05-01), Wing
patent: 3602424 (1971-08-01), Raulston
patent: 3623655 (1971-11-01), Tieszen
patent: 3747839 (1973-07-01), Morton
patent: 3891139 (1975-06-01), Redling
Aschenbrenner Peter A.
Frazier Roy D.
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