JPS54164322A - Shield excavator - Google Patents

Shield excavator

Info

Publication number
JPS54164322A
JPS54164322A JP7273878A JP7273878A JPS54164322A JP S54164322 A JPS54164322 A JP S54164322A JP 7273878 A JP7273878 A JP 7273878A JP 7273878 A JP7273878 A JP 7273878A JP S54164322 A JPS54164322 A JP S54164322A
Authority
JP
Japan
Prior art keywords
shield excavator
excavator
shield
Prior art date
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
Application number
JP7273878A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nohara
Tsunenori Saitou
Kazuo Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7273878A priority Critical patent/JPS54164322A/en
Publication of JPS54164322A publication Critical patent/JPS54164322A/en
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP7273878A 1978-06-17 1978-06-17 Shield excavator Pending JPS54164322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7273878A JPS54164322A (en) 1978-06-17 1978-06-17 Shield excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7273878A JPS54164322A (en) 1978-06-17 1978-06-17 Shield excavator

Publications (1)

Publication Number Publication Date
JPS54164322A true JPS54164322A (en) 1979-12-27

Family

ID=13497989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7273878A Pending JPS54164322A (en) 1978-06-17 1978-06-17 Shield excavator

Country Status (1)

Country Link
JP (1) JPS54164322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6060821A (en) * 1993-06-16 2000-05-09 Ngk Spark Plug Co., Ltd. Heater equipped spark plug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815946U (en) * 1971-07-07 1973-02-22
JPS5291536A (en) * 1976-01-28 1977-08-02 Mitsui Constr Cylinder shield excavator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4815946U (en) * 1971-07-07 1973-02-22
JPS5291536A (en) * 1976-01-28 1977-08-02 Mitsui Constr Cylinder shield excavator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6060821A (en) * 1993-06-16 2000-05-09 Ngk Spark Plug Co., Ltd. Heater equipped spark plug

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