JP2530452C - - Google Patents
Info
- Publication number
- JP2530452C JP2530452C JP2530452C JP 2530452 C JP2530452 C JP 2530452C JP 2530452 C JP2530452 C JP 2530452C
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- gravel
- cylindrical
- disk
- cone
- 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.)
- Expired - Lifetime
Links
Family
ID=
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