JPS6431375U - - Google Patents

Info

Publication number

JPS6431375U

JPS6431375U JP12602087U JP12602087U JPS6431375U JP S6431375 U JPS6431375 U JP S6431375U JP 12602087 U JP12602087 U JP 12602087U JP 12602087 U JP12602087 U JP 12602087U JP S6431375 U JPS6431375 U JP S6431375U

Authority

JP

Japan

Prior art keywords

pipe

heat exchanger

square pipes

utility

model registration

Prior art date

1987-08-19

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

• RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims 1
• 229910052802 copper Inorganic materials 0.000 claims 1
• 239000010949 copper Substances 0.000 claims 1
• 239000000463 material Substances 0.000 claims 1
• 238000002485 combustion reaction Methods 0.000 description 1