US Patent 4,038,878 - Excel

DISRAELI DOCUMENTS

US Patent # 4,038,878 - Excel

US Patent 4,038,878 - Excel main image

Publisher: US Patent and Trademark Office
Inventor: Walter Dian
Country: USA
Date: priority date May 1976
Derailleur brands: Excel, Elgin
Derailleurs: Excel, Elgin American

US Patent 4,038,878 - Excel scan 01 thumbnail

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Browse associated derailleurs.

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Excel derailleur thumbnail

Elgin American (1st style) 1975?

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Excel 1977?