US4934873A
(en )
1990-06-19
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US4145092A
(en )
1979-03-20
Flexible track for vehicles
USRE50336E1
(en )
2025-03-18
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(en )
2006-12-13
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(pl )
2015-02-27
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(en )
1992-11-24
Tram chain connection link
US5096270A
(en )
1992-03-17
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BE516769A
(pl )
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(de )
1985-08-14
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(ja )
2019-03-06
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US20150266547A1
(en )
2015-09-24
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US4475647A
(en )
1984-10-09
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CA1103282A
(en )
1981-06-16
Device for safety guiding of hauling chain especially at ranging drum shearer in coal mining
US4993779A
(en )
1991-02-19
Element to form a rack for a mining machine haulage system
Korski
2021
Longwall shearer haulage systems-a historical review. Part 2–First cordless haulage systems solutions
US3202267A
(en )
1965-08-24
Log haul chair
GB1590394A
(en )
1981-06-03
Holding device for a chain
US1851496A
(en )
1932-03-29
Device for shoring or supporting the roofs of mines
CN222433278U
(zh )
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(ko )
2002-07-05
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WO1991002141A1
(fr )
1991-02-21
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SU1305358A1
(ru )
1987-04-23
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FR2541638A1
(fr )
1984-08-31
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FR2558864A1
(fr )
1985-08-02
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KR840001004B1
(ko )
1984-07-19
건축차량용 프레임 구조