CH5132A - Machine à forer les tunnels - Google Patents

Machine à forer les tunnels

Info

Publication number: CH5132A
Authority: CH; Switzerland
Prior art keywords: drilling machine; tunnel drilling; tunnel; machine; drilling
Prior art date: 1892-06-02

Application number

CH5132A

Other languages

English (en)

Inventor

Percy Knowles

Original Assignee

Percy Knowles

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.)

1892-06-02

Filing date

1892-06-02

Publication date

1892-10-31

1892-06-02 Application filed by Percy Knowles filed Critical Percy Knowles

1892-10-31 Publication of CH5132A publication Critical patent/CH5132A/fr

Links

238000005553 drilling Methods 0.000 title 1

CH5132A 1892-06-02 1892-06-02 Machine à forer les tunnels CH5132A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH5132T		1892-06-02

Publications (1)

Publication Number	Publication Date
CH5132A true CH5132A (fr)	1892-10-31

Family

ID=4188714

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH5132A CH5132A (fr)	1892-06-02	1892-06-02	Machine à forer les tunnels

Country Status (1)

Country	Link
CH (1)	CH5132A (fr)

1892
- 1892-06-02 CH CH5132A patent/CH5132A/fr unknown

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