BR8701354A - MECHANICAL SYSTEM FOR TUNNELS IMPLANTATION - Google Patents

MECHANICAL SYSTEM FOR TUNNELS IMPLANTATION

Info

Publication number: BR8701354A
Authority: BR; Brazil
Prior art keywords: tunnels; implantation; mechanical system; mechanical; tunnels implantation
Prior art date: 1987-02-25

Application number

BR8701354A

Other languages

Portuguese (pt)

Inventor

Marco Antonio Botter

Original Assignee

Telar Engenharia E Comercio Lt

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.)

1987-02-25

Filing date

1987-02-25

Publication date

1987-12-08

1987-02-25 Application filed by Telar Engenharia E Comercio Lt filed Critical Telar Engenharia E Comercio Lt

1987-02-25 Priority to BR8701354A priority Critical patent/BR8701354A/en

1987-12-08 Publication of BR8701354A publication Critical patent/BR8701354A/en

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
BR8701354A BR8701354A (en)	1987-02-25	1987-02-25	MECHANICAL SYSTEM FOR TUNNELS IMPLANTATION

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BR8701354A BR8701354A (en)	1987-02-25	1987-02-25	MECHANICAL SYSTEM FOR TUNNELS IMPLANTATION

Publications (1)

Publication Number	Publication Date
BR8701354A true BR8701354A (en)	1987-12-08

Family

ID=4041885

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8701354A BR8701354A (en)	1987-02-25	1987-02-25	MECHANICAL SYSTEM FOR TUNNELS IMPLANTATION

Country Status (1)

Country	Link
BR (1)	BR8701354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN112253151A (en) *	2020-11-10	2021-01-22	粤水电轨道交通建设有限公司	Ultra-deep circular shaft double-line shield split starting construction method

1987
- 1987-02-25 BR BR8701354A patent/BR8701354A/en not_active IP Right Cessation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN112253151A (en) *	2020-11-10	2021-01-22	粤水电轨道交通建设有限公司	Ultra-deep circular shaft double-line shield split starting construction method
CN112253151B (en) *	2020-11-10	2022-06-28	粤水电轨道交通建设有限公司	A kind of super-deep circular shaft double-line shield split start construction method

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Legal Events

Date	Code	Title	Description
1995-07-04	ME	Request for revocation
2008-07-29	B21A	Expiry acc. art. 78, item i of ipl- expiry of the term of protection	Free format text: PATENTE EXTINTA EM 25/02/2002