JPH041916U - - Google Patents

Info

Publication number

JPH041916U

JPH041916U JP4266190U JP4266190U JPH041916U JP H041916 U JPH041916 U JP H041916U JP 4266190 U JP4266190 U JP 4266190U JP 4266190 U JP4266190 U JP 4266190U JP H041916 U JPH041916 U JP H041916U

Authority

JP

Japan

Prior art keywords

layer

building material

foam

sound

back surface

Prior art date

1990-04-20

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

• 239000004566 building material Substances 0.000 claims description 7
• 238000009413 insulation Methods 0.000 claims description 2
• 238000009408 flooring Methods 0.000 claims 3
• 239000006260 foam Substances 0.000 claims 3
• 239000006261 foam material Substances 0.000 claims 2
• 230000005484 gravity Effects 0.000 claims 2
• 239000000463 material Substances 0.000 claims 1