ORIGINAL PRINTED PATENT APPLICATION NUMBER 9,139 FOR IMPROVEMENTS RELATING TO BURNER TUBES FOR INCANDESCENT LAMPS. (1909)
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Title: ORIGINAL PRINTED PATENT APPLICATION NUMBER 9,139 FOR IMPROVEMENTS RELATING TO BURNER TUBES FOR INCANDESCENT LAMPS. (1909)
Author: Ehrich and Graetz (inventors).
Publisher: HMSO
Publication Date: 1909
Binding: Hardback
Condition: Acceptable
SKU:329174
Description: Complete specification for patent application together with drawings.
Details: 1909. HMSO. First. Disbound loose sheets with clear protective covers. 7.5x11. Ex-libris.
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