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1965-10-18 |
1968-01-02 |
Westinghouse Air Brake Co |
Rotating cutter bit
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1976-07-22 |
1977-12-27 |
Elders G W |
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1984-11-22 |
1986-05-28 |
Elfgen, Gerd, 5303 Bornheim |
ROUNDING CHISEL FOR BOLTING MACHINES
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USD347232S
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1993-01-21 |
1994-05-24 |
Kennametal Inc. |
Tip with lobes
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1993-09-02 |
1996-09-03 |
The Sollami Company |
Tungsten carbide insert for a cutting tool
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1993-09-02 |
1996-01-16 |
The Sollami Company |
Insert for tungsten carbide tool
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USD387072S
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1996-07-25 |
1997-12-02 |
Rogers Tool Works, Inc. |
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1997-10-07 |
2000-02-01 |
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1997-12-11 |
1998-10-20 |
Jeff Lee |
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1998-01-28 |
2000-05-11 |
Betek Bergbau & Hartmetall |
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1998-09-04 |
2000-02-01 |
Hydra Tools International Limited |
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1998-09-04 |
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Hydra Tools International Limited |
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1998-12-12 |
2000-06-15 |
Boart Hwf Gmbh Co Kg |
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2000-05-22 |
2002-01-29 |
The Sollami Company |
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2001-07-12 |
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USD520035S1
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2004-06-17 |
2006-05-02 |
Betek Bergbau-Und Hartmetalltechnik Karl-Heinz Simon Gmbh & Co. Kg |
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2006-05-02 |
2008-07-08 |
Betek Bergbau- Und Hartmetalltechnik |
Chisel-tip for a cutter-bit
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2007-05-17 |
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Everpads Co., Ltd. |
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2007-05-18 |
2007-12-25 |
Everpads Co., Ltd. |
Chisel
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2007-10-29 |
2011-06-16 |
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2008-04-22 |
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Everpads Co., Ltd. |
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2008-09-05 |
2010-05-27 |
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2008-11-05 |
2014-01-28 |
Gregory Greenspan |
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2009-06-17 |
2010-12-23 |
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2009-12-23 |
2010-11-23 |
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2013-10-10 |
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2014-09-13 |
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淮南菲利普斯采矿机械制造有限公司 |
The wear-resistant cutting pick of a kind of development machine
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2015-11-10 |
Kennametal Inc. |
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Kennametal Inc. |
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Atlas Copco Secoroc Ab |
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2015-07-22 |
2017-01-26 |
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2018-02-06 |
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2017-01-25 |
2019-07-16 |
河南理工大学 |
Bionical flow liner drop resistance conical pick and coal petrography cutting process design method
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2017-02-22 |
2019-11-26 |
Kennametal Inc. |
Cutting bit
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2018-06-06 |
2019-10-15 |
Kennametal Inc. |
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2018-11-15 |
2021-05-25 |
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Cutting tool
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2018-11-15 |
2021-08-24 |
Caterpillar Inc. |
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