F23J2213/301 - CPC Classification Index

ClassID:

156825 ⎘

F23J2213/301 - CPC Classification

Classification description:

Chimneys or flues; Specific materials flexible

Recent Application in this class:

20180245718

Flexible chimney hose liner

20150354733

Flexible chimney hose liner

20150308323

Exhaust structure for combustion apparatus and construction method thereof

20110303141

Floating flue

20060130411

Rubber boot-based roof flashing apparatus