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3904112
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Patent Grant
3904112
References
Source
Patent Number
3,904,112
Date Filed
Not available
Date Issued
Tuesday, September 9, 1975
49 years ago
CPC
B28B23/00 - Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
E01B3/28 - made from concrete or from natural or artificial stone
E01B3/42 - combined with inserts of wood or other material
E01B9/28 - Fastening on wooden or concrete sleepers or on masonry with clamp members
E01B9/64 - Rail fastenings gripping or encircling the sleeper
E01B9/685 - characterised by their shape
US Classifications
238 - Railways: surface track
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