EG15090A - A method and apparatus for excavating horizontal tunnels - Google Patents

A method and apparatus for excavating horizontal tunnels

Info

Publication number
EG15090A
EG15090A EG62881A EG62881A EG15090A EG 15090 A EG15090 A EG 15090A EG 62881 A EG62881 A EG 62881A EG 62881 A EG62881 A EG 62881A EG 15090 A EG15090 A EG 15090A
Authority
EG
Egypt
Prior art keywords
horizontal tunnels
excavating
excavating horizontal
tunnels
horizontal
Prior art date
Application number
EG62881A
Inventor
Hagimoto Hakumi
Original Assignee
Daimo Construction Co Ltd
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 Daimo Construction Co Ltd filed Critical Daimo Construction Co Ltd
Application granted granted Critical
Publication of EG15090A publication Critical patent/EG15090A/en

Links

EG62881A 1981-02-06 1981-10-28 A method and apparatus for excavating horizontal tunnels EG15090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1708181A JPS57129900A (en) 1981-02-06 1981-02-06 Chemical etching method

Publications (1)

Publication Number Publication Date
EG15090A true EG15090A (en) 1985-12-31

Family

ID=11934018

Family Applications (1)

Application Number Title Priority Date Filing Date
EG62881A EG15090A (en) 1981-02-06 1981-10-28 A method and apparatus for excavating horizontal tunnels

Country Status (2)

Country Link
JP (1) JPS57129900A (en)
EG (1) EG15090A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293830A (en) * 1987-05-26 1988-11-30 Nec Corp Etching method for semiconductor crystal
JPH0924383A (en) * 1995-07-10 1997-01-28 Nippon Enjiniyaa Service Kk Treatment of waste water of car washing and device therefor

Also Published As

Publication number Publication date
JPS614800B2 (en) 1986-02-13
JPS57129900A (en) 1982-08-12

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