AMENDED PATENT APPLICATION NUMBER 16,881* FOR IMPROVEMENTS IN DIAMOND CORE DRILLS.
Cambridge Rare Books
ISBN:
Title: AMENDED PATENT APPLICATION NUMBER 16,881* FOR IMPROVEMENTS IN DIAMOND CORE DRILLS.
Authors: Webster, Henry Low (inventor).
Binding: Hardback
Publisher: HMSO
Publish Date: 1897
Condition: ACCEPTABLE
SKU: 206402
Details: 1897. HMSO. Reprint. Disbound loose sheets with clear protective covers. 7.5x11. Ex-libris. Complete amended specification for patent application together with drawings.
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