NF L81-450:1954
Section of trimming for aperture edges (rech.).

Standard No.

NF L81-450:1954

Release Date

1954

Published By

Association Francaise de Normalisation

Latest

NF L81-450:1954

NF L81-450:1954 history

• 1954 NF L81-450:1954 Section of trimming for aperture edges (rech.).