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Class Information
Number: 48/170
Name: Gas: heating and illuminating > Center and by-pass valves
Description: Means for directing the passage of the gas through two or more purifiers and for by- passing one or more.










Patents under this class:

Patent Number Title Of Patent Date Issued
6663628 Surgical micro-resecting instrument with electrocautery feature Dec. 16, 2003











 
 
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