F
Mark Identification

F

Serial Number

72177520

Filing Date

Sep 23, 1963

Registration Date

May 4, 1965

Trademark by

FRANKLIN FROHLICH

Classification Information

HEAT EXCHANGER APPARATUS FOR EXCHANGING HEAT BETWEEN PLURAL CONFINED FLUID STREAMS, PARTICULARLY INDUSTRIAL HEAT EXCHANGER APPARATUS HAVING GLASS HEAT TRANSMITTING ELEMENTS

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