| 摘要 |
1,227,310. Lithium niobate. UNION CARBIDE CORP. 7 June, 1968 [8 June, 1967], No. 21983/70. Divided out of 1,227,242. Heading C1A. [Also in Division G2] ' A method of producing a crystal of lithium niobate is described identical to that in the parent Specification 1,227,242. |
