JPS648001U - - Google Patents

Info

Publication number

JPS648001U

JPS648001U JP9912987U JP9912987U JPS648001U JP S648001 U JPS648001 U JP S648001U JP 9912987 U JP9912987 U JP 9912987U JP 9912987 U JP9912987 U JP 9912987U JP S648001 U JPS648001 U JP S648001U

Authority

JP

Japan

Prior art keywords

rows

pipes

water pipes

combustion gas

opening

Prior art date

1987-06-26

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
• 239000000567 combustion gas Substances 0.000 claims description 5
• 238000002485 combustion reaction Methods 0.000 claims description 2
• 125000006850 spacer group Chemical group 0.000 description 1