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US4502818A
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Roof support pin
|
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US4472087A
|
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Roof support pin
|
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US4407610A
|
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Stabilizer for an earth structure
|
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US4350462A
|
|
Roof support pin
|
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US4325657A
|
|
Roof support pin
|
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DE2746722A1
|
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Point attack bit mining tool - has several peripheral spaced triangular vanes with wide trailing end
|
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US4147458A
|
|
Roof pin
|
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US4065185A
|
|
Point-attack bit
|
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AU7015374A
|
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Rotatable sleeve fora self-sharpening bit
|
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GB1419900A
|
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Bit and block assembly
|
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CA1004693A
|
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Rotatable sleeve for self-sharpening bit
|
|
US3863825A
|
|
Machine for driving mine roof pins having coaxial jacking means
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GB1358144A
|
|
Bit and block assembly
|
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CA962287A
|
|
Bit and block assembly
|
|
AU3757272A
|
|
Improvements of modifications in point attach bits
|
|
US3652130A
|
|
Bit and block assembly
|
|
US3478640A
|
|
Roof bolt connection
|
|
US3554605A
|
|
Bit and block assembly
|
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GB996691A
|
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Locking mechanism for a mineral cutting bit
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CA720278A
|
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Cutting device with resilient locking mechanism
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