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Gene Kannenberg, Jr.
Gene Kannenberg, Jr.
@genekjr.bsky.social
1 year ago
LUMBER CALCULATOR from CHICAGO SAFEWAY SCAFFOLDS (19??).

LUMBER CALCULATOR from CHICAGO SAFEWAY SCAFFOLDS (19??).

CEMENT CALCULATOR from CHICAGO SAFEWAY SCAFFOLDS (19??).

CEMENT CALCULATOR from CHICAGO SAFEWAY SCAFFOLDS (19??).

A Volvelle a Day: LUMBER CALCULATOR / CEMENT CALCULATOR from CHICAGO SAFEWAY SCAFFOLDS (19??).
#movableadayin2025 #volvelle #calculations #paperengineering #lumber #concrete #chicagosafewayscaffolds #bastianbrosco #dualvolvelle #doublesidedvolvelle

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