JPS54142803A - Roller bit for rotary excavator - Google Patents

Roller bit for rotary excavator

Info

Publication number
JPS54142803A
JPS54142803A JP5005578A JP5005578A JPS54142803A JP S54142803 A JPS54142803 A JP S54142803A JP 5005578 A JP5005578 A JP 5005578A JP 5005578 A JP5005578 A JP 5005578A JP S54142803 A JPS54142803 A JP S54142803A
Authority
JP
Japan
Prior art keywords
roller bit
rotary excavator
excavator
rotary
bit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5005578A
Other languages
Japanese (ja)
Inventor
Yasuaki Ishikawa
Tadashi Okaji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP5005578A priority Critical patent/JPS54142803A/en
Publication of JPS54142803A publication Critical patent/JPS54142803A/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP5005578A 1978-04-28 1978-04-28 Roller bit for rotary excavator Pending JPS54142803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5005578A JPS54142803A (en) 1978-04-28 1978-04-28 Roller bit for rotary excavator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5005578A JPS54142803A (en) 1978-04-28 1978-04-28 Roller bit for rotary excavator

Publications (1)

Publication Number Publication Date
JPS54142803A true JPS54142803A (en) 1979-11-07

Family

ID=12848302

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5005578A Pending JPS54142803A (en) 1978-04-28 1978-04-28 Roller bit for rotary excavator

Country Status (1)

Country Link
JP (1) JPS54142803A (en)

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