Technical Patent Glossary Entry

Term ID: 738775
Source ID: 5
Last Modified: 20110223

Chinese (Traditional): 極窄隧道層
English: extra-narrow tunnel

IPC Classifications: -E/21/D/9/00 -C/23/D/9/04 -B/61/B/13/10 -E/21/F/17/00 -E/21/D/8/00 -E/21/D/15/02 -F/21/W/131/101 -H/01/K/7/02 -H/01/L/29/88 -E/21/D/17/10 -F/27/B/9/06 -E/21/D/15/16 -G/01/M/10/00 -H/03/K/17/58 -F/16/M/1/022 -H/03/B/7/08 -E/21/F/7/00 -C/23/C/16/507 -G/01/S/1/54 -G/01/S/3/66 -E/02/D/17/06 -E/02/D/15/04 -E/02/D/29/09 -E/02/D/5/36 -E/02/D/5/26 -C/09/K/8/60 -G/01/V/9/02 -G/04/B/5/10 -E/05/B/19/16 -D/21/H/23/78