Sheet metal work; a manual of practical self-instruction in the art of pattern drafting and construction work in light-and heavy-gauge metal,including skylight,roofing,cornice woke,patterns for forced-air fittings,ect

Neubecker, William

Sheet metal work; a manual of practical self-instruction in the art of pattern drafting and construction work in light-and heavy-gauge metal,including skylight,roofing,cornice woke,patterns for forced-air fittings,ect - New York American technical society 1946

621.704 / N43S

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