Normal view MARC view ISBD view

U.S. Patent No:1219575.

U.S. Patent No: 1219575,March 20,1917.Ce

Subjects--Index Terms: 1219575,MARCH 20,1917.CEPHAELIN ALLYL ENTRY ETHER MAKING NO..1219575 PATENT PROCESS PTENT WITHDRAWN

Universal Decimal Class. No.: 0