CH29080A - Shaft drilling apparatus - Google Patents

Shaft drilling apparatus

Info

Publication number
CH29080A
CH29080A CH29080A CH29080DA CH29080A CH 29080 A CH29080 A CH 29080A CH 29080 A CH29080 A CH 29080A CH 29080D A CH29080D A CH 29080DA CH 29080 A CH29080 A CH 29080A
Authority
CH
Switzerland
Prior art keywords
drilling apparatus
shaft drilling
shaft
drilling
Prior art date
Application number
CH29080A
Other languages
German (de)
Inventor
Eduard Frieh
Rudolf Noellenburg
Original Assignee
Eduard Frieh
Rudolf Noellenburg
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 Eduard Frieh, Rudolf Noellenburg filed Critical Eduard Frieh
Publication of CH29080A publication Critical patent/CH29080A/en

Links

CH29080A 1903-07-17 1903-07-17 Shaft drilling apparatus CH29080A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH29080T 1903-07-17

Publications (1)

Publication Number Publication Date
CH29080A true CH29080A (en) 1904-07-31

Family

ID=4244303

Family Applications (1)

Application Number Title Priority Date Filing Date
CH29080A CH29080A (en) 1903-07-17 1903-07-17 Shaft drilling apparatus

Country Status (1)

Country Link
CH (1) CH29080A (en)

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