Memorandum regarding Patent No. 235,006

code: LVSAV2022.090.052

Collection code:

LVSAV2022.090.052

File type:

Documents

Collection:

Museum Collection

Description

Memorandum regarding Patent no. 235,006 dated 17th June 1924 - Johan Axel Eriksson - Improvements in the method for manufacturing porous concrete. Dated 1932.

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