PHILADELPHIA, PA, US
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Patent Grant
Grefco, Inc.
Albert R. Collins
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
David L. Ruff
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
David L. Ruff
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
Richard B. Nielsen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
David L. Ruff
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
Richard B. Nielsen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Grefco, Inc.
Richard B. Nielsen
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
Ernest L. Neu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Patent Grant
Grefco, Inc.
Harlan E. Tarbell
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Grefco, Inc.
Paul J. Raabe
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Grefco, Inc.
Sherman A. Stewart
E04 - BUILDING
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Patent Grant
Grefco, Inc.
David L. Ruff
E04 - BUILDING
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Patent Grant
Grefco, Inc.
Sherman A. Stewart
E04 - BUILDING
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Patent Grant
Grefco, Inc.
Richard S. Funk
E04 - BUILDING
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Patent Grant
Grefco, Inc.
Ernest L. Neu
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Patent Grant
Grefco, Inc.
Melvin J. Mirliss
F26 - DRYING
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Patent Grant
Grefco Inc.
David Lee Ruff
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Patent Grant
Grefco, Inc.
Harlan E. Tarbell
B32 - LAYERED PRODUCTS
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Patent Grant
Grefco, Inc.
Sherman A. Stewart
E04 - BUILDING
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Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
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Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
Grefco, Inc.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
GREFCO, INC.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
GREFCO, INC.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
GREFCO, INC.
6 - Common metals and their alloys
Information
Trademark
GREFCO, INC.
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
GREFCO, INC.
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
GREFCO, INC.
19 - Building materials (non-metallic)
Information
Trademark
GREFCO, INC.
4 - Industrial oils and greases
Information
Trademark
GREFCO, INC.
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
GREFCO, INC.
4 - Industrial oils and greases
Information
Trademark
GREFCO, INC.
16 - Paper, cardboard and goods made from these materials, not included in other classes
Information
Trademark
GREFCO, INC.
4 - Industrial oils and greases
Information
Trademark
GREFCO, INCORPORATED
19 - Building materials (non-metallic)
