Subterranean water drain

Details Subterranean water drain Subterranean water drain

1977-03-14

1979-08-21

Largen, James R.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D2301

Patent

active

D02527022

REFERENCES:
patent: D34281 (1901-03-01), Phelps
patent: D204184 (1966-03-01), Schulze
patent: D227887 (1973-07-01), Cosson
patent: 1127246 (1915-02-01), Hirshstein
patent: 1972513 (1934-09-01), Drehmann

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