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CH244A
(en)
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New tool for the manufacture of hollow bricks
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CH1495A
(en)
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Metal bit plates for easier production of bit
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CH375A
(en)
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Mold system for the production of hollow gypsum bricks
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CH1337A
(en)
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New collar
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CH219A
(en)
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Tools for the production of mosaic tiles
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CH1452A
(en)
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flute
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CH1070A
(en)
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New microphone
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CH324A
(en)
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Brick molding machine for manual and machine operation
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CH1395A
(en)
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New corset
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CH58592A
(en)
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Formwork for the production of concrete ceilings
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FR338851A
(en)
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Die for the manufacture of tiles
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CH30422A
(en)
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Forming machine for the production of building blocks
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CH985A
(en)
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New carousel
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CH47075A
(en)
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Machine for the production of concrete hollow bricks
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CH988A
(en)
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Machine for the production of rail nails
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CH32403A
(en)
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Novel hollow building block
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DK6712C
(en)
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Method of Manufacturing Hydraulic Cements.
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CH487A
(en)
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Ploughman
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FR340130A
(en)
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Production of new basic coloring materials
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CH30164A
(en)
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Paneling for building roofing
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CH1215A
(en)
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Machine for the manufacture of horseshoe nails
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CH1359A
(en)
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Precision sphygmograph
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CH30158A
(en)
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Gypsum block
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CH915A
(en)
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Advanced machine for the manufacture of trellises or trellises
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CH30040A
(en)
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Stucco ornament
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