JPH0234351Y2 - - Google Patents

Info

Publication number

JPH0234351Y2

JPH0234351Y2 JP2777785U JP2777785U JPH0234351Y2 JP H0234351 Y2 JPH0234351 Y2 JP H0234351Y2 JP 2777785 U JP2777785 U JP 2777785U JP 2777785 U JP2777785 U JP 2777785U JP H0234351 Y2 JPH0234351 Y2 JP H0234351Y2

Authority

JP

Japan

Prior art keywords

formwork

hook

manhole

safety net

inner diameter

Prior art date

1985-02-27

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.)

Expired

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009415 formwork Methods 0.000 claims description 40
• 238000009434 installation Methods 0.000 description 5
• 239000011162 core material Substances 0.000 description 4
• 239000004743 Polypropylene Substances 0.000 description 2
• 238000004519 manufacturing process Methods 0.000 description 2
• 239000007769 metal material Substances 0.000 description 2
• 239000004033 plastic Substances 0.000 description 2
• -1 polypropylene Polymers 0.000 description 2
• 229920001155 polypropylene Polymers 0.000 description 2
• 239000000919 ceramic Substances 0.000 description 1
• 238000005260 corrosion Methods 0.000 description 1
• 230000007797 corrosion Effects 0.000 description 1
• 238000010586 diagram Methods 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1