PL88072B1 - - Google Patents

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Publication number
PL88072B1
PL88072B1 PL17325074A PL17325074A PL88072B1 PL 88072 B1 PL88072 B1 PL 88072B1 PL 17325074 A PL17325074 A PL 17325074A PL 17325074 A PL17325074 A PL 17325074A PL 88072 B1 PL88072 B1 PL 88072B1
Authority
PL
Poland
Prior art keywords
casing
handles
supported
rectangular
mining
Prior art date
Application number
PL17325074A
Other languages
English (en)
Polish (pl)
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 filed Critical
Priority to PL17325074A priority Critical patent/PL88072B1/pl
Publication of PL88072B1 publication Critical patent/PL88072B1/pl

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  • Earth Drilling (AREA)
PL17325074A 1974-08-05 1974-08-05 PL88072B1 (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17325074A PL88072B1 (it) 1974-08-05 1974-08-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL17325074A PL88072B1 (it) 1974-08-05 1974-08-05

Publications (1)

Publication Number Publication Date
PL88072B1 true PL88072B1 (it) 1976-08-31

Family

ID=19968506

Family Applications (1)

Application Number Title Priority Date Filing Date
PL17325074A PL88072B1 (it) 1974-08-05 1974-08-05

Country Status (1)

Country Link
PL (1) PL88072B1 (it)

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