Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent
1984-09-18
1987-06-30
Largen, James R.
Environmental heating and cooling; fluid handling and sanitary e
Heating or cooling
Element or attachment, not elsewhere specified
Patent
active
D02906406
REFERENCES:
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patent: 3511472 (1970-05-01), Zimmerman
patent: 3655163 (1972-04-01), Ruttan et al.
patent: 4014514 (1977-03-01), Priese
patent: 4477051 (1984-10-01), Ben-Yehuda
Frigoscandia Contracting AB
Largen James R.
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