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US1210097A
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Process and apparatus for preparing hard commercial pitch.
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US1162453A
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Weather and flame resistant composition for fibrous materials, &c.
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US1155130A
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Weather and flame resistant shingle, &c., and method of making same.
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US1175079A
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Continuous coking of liquids.
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US1241146A
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Process of joining sheets of composition roofing.
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US1177267A
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Process of disintegrating fibrous material.
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US1210469A
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Device for facilitating shingle-laying.
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US1201756A
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Reinforced-fibrous-composition sheet.
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CA161254A
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Pitch
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US1119261A
|
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Underbody for tank-cars.
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US1107053A
|
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Underbody for tank-cars.
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US1134421A
|
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Method of burning fuel.
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US1099434A
|
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Underbody for tank-cars.
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US1088635A
|
|
Hard commercial pitch and method of preparing the same.
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US1176853A
|
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Waterproof floor-covering.
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US1012903A
|
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Roofing.
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CA124667A
|
|
Pavement
|
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US1058848A
|
|
Pavement and process of making same.
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US1025687A
|
|
Heater for gravel, &c.
|
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US796124A
|
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Tile-machine.
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