JPS531224Y2 - - Google Patents

Info

Publication number
JPS531224Y2
JPS531224Y2 JP1974041970U JP4197074U JPS531224Y2 JP S531224 Y2 JPS531224 Y2 JP S531224Y2 JP 1974041970 U JP1974041970 U JP 1974041970U JP 4197074 U JP4197074 U JP 4197074U JP S531224 Y2 JPS531224 Y2 JP S531224Y2
Authority
JP
Japan
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
Application number
JP1974041970U
Other languages
Japanese (ja)
Other versions
JPS50131139U (enrdf_load_html_response
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1974041970U priority Critical patent/JPS531224Y2/ja
Publication of JPS50131139U publication Critical patent/JPS50131139U/ja
Application granted granted Critical
Publication of JPS531224Y2 publication Critical patent/JPS531224Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP1974041970U 1974-04-15 1974-04-15 Expired JPS531224Y2 (enrdf_load_html_response)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1974041970U JPS531224Y2 (enrdf_load_html_response) 1974-04-15 1974-04-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1974041970U JPS531224Y2 (enrdf_load_html_response) 1974-04-15 1974-04-15

Publications (2)

Publication Number Publication Date
JPS50131139U JPS50131139U (enrdf_load_html_response) 1975-10-28
JPS531224Y2 true JPS531224Y2 (enrdf_load_html_response) 1978-01-14

Family

ID=28170365

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1974041970U Expired JPS531224Y2 (enrdf_load_html_response) 1974-04-15 1974-04-15

Country Status (1)

Country Link
JP (1) JPS531224Y2 (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52128633A (en) * 1976-04-21 1977-10-28 Hitachi Construction Machinery Earth pressure control method of tunnel excavator
JPS6124622Y2 (enrdf_load_html_response) * 1980-10-16 1986-07-23

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561223A (en) * 1968-07-09 1971-02-09 John R Tabor Tunneling machine with concrete wall forming mechanism
JPS4832194U (enrdf_load_html_response) * 1971-08-19 1973-04-18
JPS4917029A (enrdf_load_html_response) * 1972-06-10 1974-02-15

Also Published As

Publication number Publication date
JPS50131139U (enrdf_load_html_response) 1975-10-28

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