JPS63169614U - - Google Patents

Info

Publication number

JPS63169614U

JPS63169614U JP6252587U JP6252587U JPS63169614U JP S63169614 U JPS63169614 U JP S63169614U JP 6252587 U JP6252587 U JP 6252587U JP 6252587 U JP6252587 U JP 6252587U JP S63169614 U JPS63169614 U JP S63169614U

Authority

JP

Japan

Prior art keywords

trapezoidal

equal intervals

width direction

convex portions

block

Prior art date

1987-04-24

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

• 238000010276 construction Methods 0.000 claims 1
• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 230000003014 reinforcing effect Effects 0.000 description 1