CH4233A - Device for drilling hard rock - Google Patents

Device for drilling hard rock

Info

Publication number
CH4233A
CH4233A CH4233A CH4233DA CH4233A CH 4233 A CH4233 A CH 4233A CH 4233 A CH4233 A CH 4233A CH 4233D A CH4233D A CH 4233DA CH 4233 A CH4233 A CH 4233A
Authority
CH
Switzerland
Prior art keywords
hard rock
drilling hard
drilling
rock
hard
Prior art date
Application number
CH4233A
Other languages
German (de)
Inventor
Halske Siemens
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH4233A publication Critical patent/CH4233A/en

Links

CH4233A 1891-10-17 1891-10-17 Device for drilling hard rock CH4233A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4233T 1891-10-17

Publications (1)

Publication Number Publication Date
CH4233A true CH4233A (en) 1892-05-14

Family

ID=4186678

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4233A CH4233A (en) 1891-10-17 1891-10-17 Device for drilling hard rock

Country Status (1)

Country Link
CH (1) CH4233A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136283B (en) * 1956-05-05 1962-09-06 Andreas Stihl Erdbohrgeraet for the production of holes for the foundation, of plant holes or the like.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136283B (en) * 1956-05-05 1962-09-06 Andreas Stihl Erdbohrgeraet for the production of holes for the foundation, of plant holes or the like.

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