JPS633714U - - Google Patents

Info

Publication number

JPS633714U

JPS633714U JP9720886U JP9720886U JPS633714U JP S633714 U JPS633714 U JP S633714U JP 9720886 U JP9720886 U JP 9720886U JP 9720886 U JP9720886 U JP 9720886U JP S633714 U JPS633714 U JP S633714U

Authority

JP

Japan

Prior art keywords

groove

ceiling material

curved ceiling

metal fittings

cut groove

Prior art date

1986-06-25

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

• 239000000463 material Substances 0.000 claims description 7
• 239000002184 metal Substances 0.000 claims description 6
• 230000003014 reinforcing effect Effects 0.000 claims description 5
• 230000037431 insertion Effects 0.000 claims description 2
• 238000003780 insertion Methods 0.000 claims description 2
• 230000002787 reinforcement Effects 0.000 description 1