- Inventory number: 18238
- Language: en
- Type: b
- Call number: 621.8
- Author number: h318
- Title: printing telegraph systems and mechanisms
- Author: harrison,h.h
- Place of publication and publisher: new york:longmans green and co
- Publication date: 1923
- Pages: 435,7-12
- Notes: include illustation index
- Subject: machine engineering
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