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US3362754A
|
|
Cutting bit and holder
|
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US2786663A
|
|
Coal cutting bit having a skewed cutting face
|
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US2786664A
|
|
Coal cutting bit having a skewed cutting face
|
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GB688877A
|
|
Extensible post for supporting surveying instruments
|
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US2483221A
|
|
Bit with protected insert
|
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GB630392A
|
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Reversible mining machine chain lug
|
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GB624956A
|
|
Cutting bit for mining coal and other substances
|
|
GB613873A
|
|
Cutting machine
|
|
US2483220A
|
|
Bit
|
|
US2434256A
|
|
Wedge-grip holder for bits
|
|
US2551962A
|
|
Holder for bits
|
|
US2415107A
|
|
Bit holder
|
|
US2397974A
|
|
Cutting machine
|
|
US2397989A
|
|
Chain link
|
|
US2398107A
|
|
Mining machine chain lug
|
|
US2347329A
|
|
Holding device
|
|
GB561499A
|
|
Improvements in or relating to mining machine cutter chains
|
|
GB559947A
|
|
Mining machine cutter bars
|
|
US2304505A
|
|
Mining machine cutter bar
|
|
US2325792A
|
|
Method of making mining machine chain lugs
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