CH1678A - Drill steel - Google Patents

Drill steel

Info

Publication number
CH1678A
CH1678A CH1678A CH1678DA CH1678A CH 1678 A CH1678 A CH 1678A CH 1678 A CH1678 A CH 1678A CH 1678D A CH1678D A CH 1678DA CH 1678 A CH1678 A CH 1678A
Authority
CH
Switzerland
Prior art keywords
drill steel
drill
steel
Prior art date
Application number
CH1678A
Other languages
German (de)
Inventor
Johann Martignoni
Original Assignee
Johann Martignoni
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 Johann Martignoni filed Critical Johann Martignoni
Publication of CH1678A publication Critical patent/CH1678A/en

Links

CH1678A 1889-10-19 1889-10-19 Drill steel CH1678A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1678T 1889-10-19

Publications (1)

Publication Number Publication Date
CH1678A true CH1678A (en) 1890-04-15

Family

ID=4180780

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1678A CH1678A (en) 1889-10-19 1889-10-19 Drill steel

Country Status (1)

Country Link
CH (1) CH1678A (en)

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