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SU21585A1
(en)
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Lower frame dividers in st.
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CH162715A
(en)
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Flattening machine.
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ES113356A1
(en)
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Improvements in electro-motors.
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ES111494A3
(en)
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Improvements in fabrics.
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ES115241A1
(en)
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Improvements in refrigeration machines.
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ES113113A3
(en)
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Improvement in filters.
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GR2193B
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IMPROVEMENTS IN THE NEW TYPE AROTRON.
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GR2194B
(en)
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IMPROVEMENTS IN THE NEW TYPE AROTRON.
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ES112827A1
(en)
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Improvements in corsets.
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ES107910A1
(en)
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Improvement in radio-antennas.
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ES114301A3
(en)
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Improvements in refrigeration.
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ES106538A1
(en)
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Improvements in gasogens.
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ES107158A1
(en)
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Improvements in gasogens.
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ES110835A1
(en)
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Improvements in metallurgy.
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ES114256A1
(en)
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Improvements in transmissions.
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ES113426A1
(en)
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Improvements in construction elements.
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ES112317A1
(en)
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Improvements in talking machines.
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ES112318A1
(en)
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Improvements in talking machines.
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ES112319A1
(en)
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Improvements in talking machines.
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ES113796A1
(en)
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Improvements in talking machines.
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ES109160A3
(en)
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An improvement in the quills.
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ES114767A1
(en)
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Improvements in calculating machines.
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ES111274A1
(en)
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Improvements in filters.
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ES117228A3
(en)
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Improvements in pincushion devices.
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ES111067A1
(en)
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Improvements in antennas.
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