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Reliable vacuum and vacu-vapor heating equipment (1915)

The Bishop-Babcock-Becker Co. · The Bishop-Babcock-Becker Co. · leaf 24

An illustration from Reliable vacuum and vacu-vapor heating equipment, 1915, leaf 24
Twenty VACUUM HEATING EQUIPMENT STRAINER WITH CHECK VALVE … Nos.224922592269

Heating units · Vacuum-tube collectors · HVAC ducts and casings

Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.

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