JPS6289321U - - Google Patents

Info

Publication number

JPS6289321U

JPS6289321U JP18125285U JP18125285U JPS6289321U JP S6289321 U JPS6289321 U JP S6289321U JP 18125285 U JP18125285 U JP 18125285U JP 18125285 U JP18125285 U JP 18125285U JP S6289321 U JPS6289321 U JP S6289321U

Authority

JP

Japan

Prior art keywords

water

underdrain

repellent material

drainage

trench

Prior art date

1985-11-25

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 6
• 239000005871 repellent Substances 0.000 claims description 3
• 230000002209 hydrophobic effect Effects 0.000 description 1
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1