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Cooling & Air Conditioning Cor
Cooling &
Active Patents
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Total Holdings
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Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US1821886A
Heating and humidification system and apparatus
Expired / Lapsed
1928-08-28
1931-09-01
0
Details
US1751806A
Ventilating system
Expired / Lapsed
1928-02-08
1930-03-25
0
Details