Drilldown: Patents

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Patents > Year filed: 1880 - 1889 & Number of figures: 7-14

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Inventors:
Blaise Bontems (2) · Wald Gustafson (2) · Albert Livingstone Blackman (2)
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None (7) · Blaise Bontems (2) · Wald Gustafson (2) · Albert Livingstone Blackman (2)
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None (13) · DE 77 (11) · USPC 244/28 (3) · USPC 244/30 (3) · USPC 244/64 (3) · USPC 244/51 (2) · USPC 244/3.23 (2)
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