Patent #81,437 was issued to Franz Vester on August 25, 1868 for an Improved Burial Case.
This coffin was designed so that a person who was buried alive could escape. Vester’s invention included a square tube that extended above the gravesite allowing air inside the coffin. This tube had a ladder and a way for aboveground [...]
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I get this question all the time. Sometimes the question is what is a patent plaque, other times it’s what is a patent award. In short it is an award plaque given to a company or inventor which displays their patent.
Patent plaques and patent awards come in many styles and material options. Some are hung [...]
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