Patents for inventions
abridgments of specifications 440,001-460,000.
by Great Britain. Patent Office.
Comprising classes 79(i-v); 136(i-iii).
The Physical Object
|Pagination||x, 162p. :|
|Number of pages||162|
History Created October 20, 2008 ·
|December 15, 2009||Edited by WorkBot||link works|
|October 20, 2008||Created by ImportBot||Initial record created, from Talis MARC record.|