JPS642061U - - Google Patents

Info

Publication number

JPS642061U

JPS642061U JP9534787U JP9534787U JPS642061U JP S642061 U JPS642061 U JP S642061U JP 9534787 U JP9534787 U JP 9534787U JP 9534787 U JP9534787 U JP 9534787U JP S642061 U JPS642061 U JP S642061U

Authority

JP

Japan

Prior art keywords

bricks

converter

stopper

falling

sleeve

Prior art date

1987-06-23

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

• 239000011449 brick Substances 0.000 claims description 7
• 229910000831 Steel Inorganic materials 0.000 description 2
• 239000010959 steel Substances 0.000 description 2
• 238000010276 construction Methods 0.000 description 1
• 238000007796 conventional method Methods 0.000 description 1
• 239000004570 mortar (masonry) Substances 0.000 description 1