Protective cover for a sewer pipe flange

Details Protective cover for a sewer pipe flange Protective cover for a sewer pipe flange

1978-12-26

1981-08-11

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23 69, D2301

Patent

active

D02601702

REFERENCES:
patent: D191184 (1961-08-01), Scholz
patent: D253369 (1979-11-01), Koelble et al.
patent: 2800242 (1957-07-01), Sauthoff
patent: 3339215 (1967-09-01), Flood
patent: 3418669 (1968-12-01), Maxwell
patent: 3445973 (1969-05-01), Stone
patent: 3846851 (1974-11-01), Pepper
patent: 4052759 (1977-10-01), Hill
patent: 4090267 (1978-05-01), Cuschera
patent: 4212486 (1980-07-01), Logsdon

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