Letters patent (no. 2871) granted to Henry Woodcroft Hammond for "An improved compound Blower"
- Made:
- 1873
[Letters patent (no. 2871) granted to Henry Woodcroft Hammond for "An improved compound Blower". 1873 Sept 1. 1 parchment sheet, with wax seal in can. Address of Hammond, civil engineer, given as 27 Southampton Buildings, Chancery Lane. The invention has been communicated to him by Philip Syng Justice of Philadelphia USA]
