Improvements in and relating to Partitions for Schools and other purposes.
Номер патента: GB190113271A
Опубликовано: 24-08-1901
Автор(ы): Henry Addison
Принадлежит: Individual
Опубликовано: 24-08-1901
Автор(ы): Henry Addison
Принадлежит: Individual
Реферат: 13,271. Addison, E. June 29. Drawings to Specification. Blackboards.-The panels of the sections of folding partitions for school rooms may be used as blackboards, and may be made of ebonite, glass, or other material.
Improvements relating to methods of and apparatus for production of wheels and other articles by friction or other welding
Номер патента: AU3790472A. Автор: Frederick Edwards Michael. Владелец: GKN Sankey Ltd. Дата публикации: 1973-07-19.