|
US1955936A
|
|
Foundry facing and method of making same
|
|
US1889007A
|
|
Sand core for casting metal and method of making same
|
|
US1866278A
|
|
Compound for use in casting metals
|
|
US1868646A
|
|
Foundry facing
|
|
US1845371A
|
|
Foundry facing and method of applying same to molds
|
|
US1787964A
|
|
Foundry facing and method of making same
|
|
US1758095A
|
|
Parting-facing product for casting metals
|
|
US1717820A
|
|
Compound for use in casting metals
|
|
US1738090A
|
|
Paris green insecticide
|
|
US1738089A
|
|
Paris green insecticide
|
|
US1678659A
|
|
Waterproof heat insulation and method of making same
|
|
US666339A
|
|
Garment-hook.
|
|
CA314377A
|
|
Foundry facing composition
|
|
CA312754A
|
|
Parting-facing product for casting metals
|
|
CA300519A
|
|
Compounds for casting metals
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