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Class Information
Number:
55/DIG.27
Name:
Gas separation
> Cleaners, liquid
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4094930
Moisturized air-filter for internal combustion engines
Jun. 13, 1978
4017280
Anti-pollution device for incinerators and the like
Apr. 12, 1977
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