JPH0115681Y2 - - Google Patents

Info

Publication number

JPH0115681Y2

JPH0115681Y2 JP1981001973U JP197381U JPH0115681Y2 JP H0115681 Y2 JPH0115681 Y2 JP H0115681Y2 JP 1981001973 U JP1981001973 U JP 1981001973U JP 197381 U JP197381 U JP 197381U JP H0115681 Y2 JPH0115681 Y2 JP H0115681Y2

Authority

JP

Japan

Prior art keywords

concrete sleeper

concrete

sleeper

hole

lifting

Prior art date

1981-01-10

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
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