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7419325 |
Tube assembling device
A tube assembling device consisting of hub-carriers and hubs for erecting three-dimensional structures. The hub-carriers consist of two pairs of half-rings, bearing tongues offset by 90° along an...
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6866514 |
Gel electrophoresis training aid and training kit
A gel electrophoresis training aid is provided. The training aid includes a substantially transparent elastomeric body having at least one series of spaced-apart wells. The elastomeric body is...
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6652285 |
System which can reversibly reproduce itself
It is described a system of independently moving elements with characteristics making them bind reversibly to each other according to certain rules such that they form self-replicating and mutating...
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6343937 |
Block
A block includes a hole provided on one side of the block, two fifths of the length of the block from one end, and a pin provided on the opposite side of the block two fifths of the length of the...
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6036497 |
Dynamic model of the DNA molecule
The invention is a dynamic model of the DNA molecule. The invention includes a multiplicity of physical representations of the four nucleotides. Each physical representation is comprised of...
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5110297 |
Assembly system for demonstrating chemical structures
An assembly for obtaining a plurality of cluster structures in either a sequential manner or collectively having a base component portion (10) having an enlarged body (12) to which is attached, by...
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4812128 |
Three-dimensional molecular model
A three-dimensional molecular model comprises plastic modules, each representing on atom connected to one another. Modules intended to represent atoms of cyclic compounds are polyhedrons set in the...
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4507089 |
Mechanical support module for nucleic acid
The invention relates to a mechanical support module for the construction of different models of nucleic acids or the like. A module of this type consists of at least one frame (110) carrying a...
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4378218 |
Protein molecule model
A ball-and-stick model system representing alpha carbon positions and the peptide link between adjacent alpha carbons as modeling elements of two-piece sets. Each two-piece set comprises...
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4184271 |
Molecular model
A model for representing nucleic acid molecules, such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) consists of a plurality of helical segments secured together in end to end relation...
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3903616 |
Molecule model construction kit
A molecule model construction kit includes six types of members, with each type representing the sugar, phosphate, thymine, adenine, guanine, and cytosine submolecules of the DNA molecule. The...
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3802097 |
DNA MODEL KIT
A kit for constructing a DNA (deoxyribonucleic acid) molecule, and for demonstrating replication during mitosis, comprises, a plurality of groups of chips, each group designating a component of the...
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3594924 |
DNA-RNA TEACHING AID
A model for representing chemical structures such as deoxyribonucleic acid and the like, and including a combination of individual units with projections and apertures formed as part of the units...
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3445940 |
RNA PROTEIN SYNTHESIS MODEL
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3296714 |
Molecular models
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