Patent:GB117278

Brevet:	GB 117278
Titre:	Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades
Date:	10.07.1918
Lieu:
Pays:	Royaume-Uni
Personne:	Bell, Arthur Mitchell (P)
Entreprise:
Liens internes:	Nomogramm
Mots-Clefs:	proportional, Proportion
Lien à la bureau des brevets: (sans garantie)	GB117278

Aus der Patentschrift GB117278

"Proportional calculators.-A calculating - device particularly applicable for use in solving problems connected with textile industries comprises a board or chart M squared according to the metric system, a pointer N being pivoted at the end O of the base-line O X. A second pointer D may be pivoted at the point X. ..."

DATUM: 10.07.1918
TITEL: Improvements in Calculating Apparatus particularly applicable for Problems connected with Textile Trades.
PERSON: BELL ARTHUR MITCHELL

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Patent:GB117278