Document Details Misc. Ephemera related to the 2018 Buergi Symposium in Lichensteig.(5 Documents):
Number of documents found: 5
- Title: Allemagne - Triple repetoire des No. de Brevets - Horlogerie et Brancges annexes 1877 ? 1952
SubTitle: [Chapter from "Triple repetoire des No. de Brevets "] - Author: Robert Berthoud
- Publisher:
Keywords: reference patent
Language: FRE
Notes: Concordance Tabel for all German horological pattent numbers with Berthouts 1944 classification system for Swiss patents
Edition: 1952? -- Copyright: 1952
Kind: Manuscript
Type: Timekeeper (general)
Geographic area: Germany
Topic: NA/Other
Organization: NA/Other
Pages: 69 -- Height in cm: 27
Print Status: 2 (1 means in print - 2 means out of print)
BHM No: 4317- Title: Catalogue du repetoire des Brevets concernant l'horlogerie et les branches annexees
- Author: Robert Berthoud
- Publisher:
Keywords: Patent
Other Keywords: classification system
Language: FRE
Notes: proposal for a new classification system for swiss horological patents
Edition: 1944 -- Copyright: 1944
Kind: Book
Type: Watch (general)
Geographic area: Switzerland
Topic: Reference
Organization: NA/other
Pages: 180 -- Height in cm: 21
Print Status: 2 (1 means in print - 2 means out of print)
BHM No: 1335- Title: Horloges ?lectriques et applications diverses - [Section] J.XI relev? de mon catalogue 1944
SubTitle: 555 exposes d'invention - [ Brevets Suisse 1889 - 1942]- Author: Robert Berthoud
- Publisher:
Keywords: directory reference electrical electromechanical electronic
Language: FRE
Notes: Complete chronological listing of summaries of all patents filed relating to electrical horology in Switzerland 1889 to 1942, listing 555 patents (No index by name). Extract from a much larger, multivolume series by the same author on all horological patents.
Edition: 1944 -- Copyright: 1944
Kind: Patent
Type: Timekeeper (general)
Geographic area: Switzerland
Topic: ElectricalScience
Organization: NA/other
Pages: 139 -- Height in cm: 29
Print Status: 2 (1 means in print - 2 means out of print)
Entered By: FMM
BHM No: 9513- Title: Repetoire des numeros de brevets avec leurs indices de classement par Robert Berthoud
SubTitle: Bibiliotheques des inventions horlogeres, annees 1888 a 1947- Author: Robert Berthoud
- Publisher:
Other Keywords: patents
Language: FRE
Notes: Index of horological Swiss patent numbers 1888 to 1947 crossreferenced to the Berthoud classificationn system of horological innovations
Edition: 1950s? undated -- Copyright: 1950
Kind: Book
Type: Timekeeper (general)
Geographic area: Switzerland
Topic: Reference
Organization: NA/other
Pages: 124 -- Height in cm: 30
Print Status: 2 (1 means in print - 2 means out of print)
Entered By: FMM
BHM No: 10147- Title: Table des facteurs pour le calcul des dimensions des engrenages epicycloidaux
SubTitle: [Table with modules amd factors to calculate epicyclodial gearing]- Author: Robert Berthoud
- Publisher:
Keywords:
Other Keywords: epicycloydal
Language: FRE
Notes: Large folded sheet published 1918 with Table with modules amd factors to calculate epicyclodial gearing (39 x 57 cm)
Edition: 1918 -- Copyright: 1918
Kind: Ephemera
Type: Timekeeper (general)
Geographic area: Not Geographic
Topic: Gearing
Organization: NA/other
Pages: 1 -- Height in cm: 39
Print Status: 1 (1 means in print - 2 means out of print)
Entered By: fortunat
BHM No: 15981 - Publisher:
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