JPH03104030U - - Google Patents

Info

Publication number

JPH03104030U

JPH03104030U JP1106590U JP1106590U JPH03104030U JP H03104030 U JPH03104030 U JP H03104030U JP 1106590 U JP1106590 U JP 1106590U JP 1106590 U JP1106590 U JP 1106590U JP H03104030 U JPH03104030 U JP H03104030U

Authority

JP

Japan

Prior art keywords

hollow

convex portion

trough

longitudinal direction

upper edge

Prior art date

1990-02-08

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

• 230000003014 reinforcing effect Effects 0.000 claims description 2
• 229920003002 synthetic resin Polymers 0.000 claims 2
• 239000000057 synthetic resin Substances 0.000 claims 2
• 230000037431 insertion Effects 0.000 claims 1
• 238000003780 insertion Methods 0.000 claims 1
• 238000009751 slip forming Methods 0.000 claims 1

Cited By (1)