JPS61179958U - - Google Patents

Info

Publication number

JPS61179958U

JPS61179958U JP6443285U JP6443285U JPS61179958U JP S61179958 U JPS61179958 U JP S61179958U JP 6443285 U JP6443285 U JP 6443285U JP 6443285 U JP6443285 U JP 6443285U JP S61179958 U JPS61179958 U JP S61179958U

Authority

JP

Japan

Prior art keywords

intermediate layer

semi

vertical direction

utility

lower surfaces

Prior art date

1985-04-30

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

• 239000010410 layer Substances 0.000 claims description 3
• 239000002344 surface layer Substances 0.000 claims description 2
• 239000006260 foam Substances 0.000 claims 1
• 230000000149 penetrating effect Effects 0.000 claims 1
• 239000011148 porous material Substances 0.000 description 1

Cited By (1)