Fireplace heat exchange tubing device

Details Fireplace heat exchange tubing device Fireplace heat exchange tubing device

1977-07-25

1979-12-18

Lucas, Susan J.

Environmental heating and cooling; fluid handling and sanitary e

Heating or cooling

Element or attachment, not elsewhere specified

D23127, D2303

Patent

active

D02537192

REFERENCES:
patent: 4060196 (1977-11-01), Goldsby et al.
patent: 4102320 (1978-07-01), Mastropole
patent: 4103670 (1978-08-01), Bergs
patent: 4112914 (1978-09-01), Brown

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