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Catalogue reference: BT 49
BT 49
Patent Office and Industrial Property Department's registers of designs submitted under the Protection of Inventions Act, 1851.These registers were duplicated by part of BT 48 and destroyed in 1961.
Patent Office and Industrial Property Department's registers of designs submitted under the Protection of Inventions Act, 1851.
These registers were duplicated by part of BT 48 and destroyed in 1961.
Board of Trade: Patent Office and Industrial Property Department: Protection of Inventions Act, 1851: Designs Registers
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